Having low FPS in Tom Clancy’s Rainbow Six Siege? If the answer is yes, don’t panic – you’re not alone. This is a rather common problem among game players, and there’re quite a few ways to fix it. Also, if you wish to boost your PC performance in gaming, you’ll find this post helpful as well.

6 Ways to boost FPS in Rainbow Six Siege

Here’re 6 ways that have proved useful to many players. You don’t have to try them all; just work your way down the list until you find the one that works for you.

Way 1: Modify in-game settings

Way 2: Disable fullscreen optimizations

Way 3: Update graphics drivers

Way 4: Close unnecessary programs

Way 5: Delete temporary/junk files

Way 6: Adjust Windows power settings


Way 1: Modify in-game settings

It is best practice to modify your in-game settings when you confront a low FPS problem. This is especially useful for people using low-end or mid-end computers. If you’re quite sure that your gaming machine is powerful enough to support every feature in the game, just skip this method and head over to the next one.

Answers may vary when it comes to “what are the best settings for Rainbow Six Siege.” Surely some of the in-game settings will lower your FPS, but you cannot simply disable them without considering the potential side-effects. Moreover, you should determine whether to adopt the following settings based on your actual situation, and to your liking of course.

Listed below are the recommended graphics settings for Rainbow Six Siege (note that the settings below are best applied to low-end computers):

1) Launch Rainbow Six Siege and open the Settings window. Then, on the DISPLAY tab, make the following tweaks:

  • Resolution: just leave it on auto.
  • Display Mode: Full Screen
  • Refresh Rate: 120 Hz
  • Aspect Ratio: Auto
  • VSync: Off
  • Widescreen Letterbox: Off
  • Field of View: 70 – 90 is acceptable

2) Now go to the GRAPHICS tab, and do the following changes:

  • Overall Quality: Custom
  • Texture Quality: Low
  • Texture Filtering: Linear/Anisotropic 4X
  • LOD Quality: Low/Medium
  • Shading Quality: Low
  • Shadow Quality: Low
  • Reflection Quality: Low
  • Ambient Occlusion: Off
  • Lens Effects: Off
  • Zoom-in Depth of Field: Off
  • Anti-Aliasing: Off

3) Click APPLY to save the changes you’ve made.

Check to see if your FPS has improved after the fine-tuning. If it hasn’t, please move on to Way 2, below.


Way 2: Disable fullscreen optimizations

According to many players, this quick fix does help them improve the FPS. But please note that the Disable fullscreen optimizations option only appears in Windows 10 so if you’re not a Windows 10 user, just skip this method. Now here’s the procedure:

1) Find your way to the .exe file of Rainbow Six Siege. (The name of the file should be RainbowSix.)

This post from Ubisoft Support offers more depth on how to find the installation location of Rainbow Six Siege.

2) Right-click on RainbowSix and select Properties.

3) In the RainbowSix Properties window, go to the Compatibility tab and check the Disable fullscreen optimizations box. Then, click Change high DPI settings.

4) In the next window, tick the Override high DPI scaling behavior check box. Then click OK.

5) Click Apply > OK.

Now launch Rainbow Six Siege and take note of your FPS. If it’s still too low, you should proceed to the next method.


Way 3: Update graphics drivers

Low FPS is sometimes caused by out-dated graphics drivers. If that’s your problem, you should keep the drivers up-to-date in order to boost your frame rate.

You can update your graphics driver via Device Manager, but Windows doesn’t always provide you with the latest drivers; you can also find your desired driver online, download it and install it step by step. For some users, the above two options seem a bit time-consuming and error-prone. So If you don’t have the time, patience or computer skills to update your device drivers manually, you can do it automatically with Driver Easy.

Driver Easy will automatically recognize your system and find the correct drivers for it. You don’t need to know exactly what system your computer is running, you don’t need to risk downloading and installing the wrong driver, and you don’t need to worry about making a mistake when installing. Driver Easy takes care of everything.

You can update your drivers automatically with either the FREE or the Pro version of Driver Easy. But with the Pro version it takes just 2 clicks:

1) Download and install Driver Easy.

2) Run Driver Easy and click the Scan Now button. Driver Easy will then scan your computer and detect any problem drivers. 

3) Click the Update button next to your graphics driver to automatically download its correct version, then you can manually install the driver (you can do this with the FREE version).

Or click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system. (This requires the Pro version which comes with full support and a 30-day money back guarantee. You’ll be prompted to upgrade when you click Update All.)

If you have any problems using Driver Easy to update your driver, please feel free to email us at support@drivereasy.com. We are always here to help.

Now launch Rainbow Six Siege and see if you continue to experience the low FPS problem. If you do, try out Way 4.

Extra info: Even if you don’t suffer from low FPS, it’s still beneficial to update your drivers regularly. For example, Nvidia keeps rolling out new drivers designed for different games (including Rainbow Six Siege) to enhance the gaming performance of its video cards. So if you’re using a Nvidia card, you can enjoy those benefits by keeping your drivers up-to-date.


Way 4: Close unnecessary programs

If you have too many CPU/memory hogging programs running in the background, that will definitely slow down the processing speed of your computer and lead to low FPS in Rainbow Six Siege. Therefore, make sure you close all the unnecessary programs before playing the game.

The following screenshots come from Windows 10 but you can still perform this method in other Windows versions.

1) On your keyboard, press the Windows logo key and then type game mode in the search box of your taskbar. In the results pane, click Game Mode settings.

2) In the pop-up window, toggle off Game Mode.

3) Go to the Game bar tab and turn off the toggle button below Record game clips, screenshots, and broadcast using Game bar.

4) Now you need to close all the unnecessary programs running in your computer. To do this, switch to an unwanted program, and close it as you normally would (e.g. by clicking the × at the top right of the program).

If the program cannot be shut down in the normal way, you can force it to close by the following procedure:

1. on your keyboard, press the Windows logo key and X at the same time. Then select Task Manager.

This image has an empty alt attribute; its file name is image-449.png

2. On the Processes tab, select the program that you want to shut down from the list in Task Manager and click End task to force a close.  (If it’s a program you’re using, e.g. Microsoft Word, make sure you save any unsaved work first.)

Do not close any unfamiliar programs. If you mistakenly shut down the important system programs, that may bring about critical problems.

5) Your trouble is sometimes caused by interference from antivirus software. To see if that’s the problem for you, temporarily disable your antivirus program and check your FPS in the game. (Consult your antivirus documentation for instructions on disabling it.)

If your FPS does improve, simply disable the antivirus when you’re playing Rainbow Six Siege. Or you can install a different antivirus solution.

Be extra careful about what sites you visit, what emails you open and what files you download when your antivirus is disabled.

Way 5: Delete temporary/junk files

Deleting temporary/junk files can effectively free up your disk space, thereby boosting your FPS in games. Here’s how:

1) On your keyboard, press the Windows logo key  and R at the same time to invoke the Run dialog box. Type in %temp% and hit Enter.

2) Press Ctrl + A to select all the files. Then hit the Delete button on your keyboard to clear them up. This won’t affect your personal files.

3) Click Skip if you’re presented with a warning that reads “the folder or a file in it is open in another program.” Then wait till the deletion is complete.

4) On your keyboard, press the Windows Logo key and R at the same time to invoke the Run dialog box again. Type in temp and hit Enter.

5) Repeat Step 2 through Step 3 to delete all the files in your temp folder.

6) On your keyboard, press the Windows Logo key and R at the same time to invoke the Run dialog box. This time, type in prefetch and hit Enter.

7) Repeat Step 2 through Step 3 to delete all the files in your prefetch folder.

8) Don’t forget to empty your Recycle Bin after everything’s done.

If you need to free up more space in your disks, you should do a disk cleanup. For more details, please refer to this post from Windows Support.

Launch Rainbow Six Siege and see whether your FPS is still too low. If it is, please move on to the next method.


Way 6: Adjust Windows power settings

Some people said adjusting Window power settings gave them a boost in FPS. As you choose the Adjust for best performance power plan, Windows will allow your CPU to run at a higher speed (for demanding games however, this tweak may not make a big difference) but your computer will also generate more heat and noise. To modify your Windows power plan, here’s the procedure:

1) On your keyboard, press the Windows logo key  and R at the same time to open the Run dialog box. Type in control panel and hit Enter.

2) Expand View by: and select Category. Then click System and Security.

3) Select System.

4) In the left pane, click Advanced system settings.

5) In the System Properties window, click the Advanced tab. Then click Settings… in the Performance section.

6) Go to the Visual Effects tab and click Adjust for best performance. Then click Apply > OK.

Now launch Rainbow Six Siege and see whether your low FPS problem has been solved or mitigated. Also note that if your computer is overheating after you change the default power plan, you should revert the plan to Let Windows choose what’s best for my computer.


There you go – six ways to boost your FPS in Rainbow Six Siege. Please feel free to leave a comment below if you have further questions or ideas. Thanks for reading!

Be the first to like this article