Each section would be a different potential fix to do, I will try to order them in a easiest to hardest so people with lesser tech literacy can easily follow along and hopefully fix their issues without needing to scrap through every section to find something they under!

I personally DESPISE any and all overlays in video games - excluding Steam's default overlay of course, this is because overlays actually cause more issues then they're worth, I would recommend temporarily disabling and even completely exiting any program that gives your game an additional overlay, this includes but is not limited to:

• Reshade
  
• Steam
  
• Nvidia GeForce Experience
  
• AMD Radeon Software overlay
  
• Overwolf
  
• Discord
  
• Medal Clip Recorder
  
• Performance Monitors
  
• Recording Software

Additionally, i had an issue with Steam Previously that would cause my entire PC to stutter and crash at random and I fixed it by going to Settings>Interface>Enable GPU accelerated render in web views and disabling it. Pretty sure it was just a buggy GPU driver at the time but I still have it turned off and all I've noticed is that generally using the Steam client feels like its at 15-30fps but it really doesn't matter when it comes to needing to restart my PC at random.

This one goes hand in hand with the following section so I would recommend doing these together.
Right click Dead By Daylight in Steam and go to Properties and in the little area where it says "Launch Options" put in the following:
If you have more modern Hardware - I'd say anything thats an RTX 30 series or later use
However, if you are running an older graphics card use these options instead

Additionally, if you don't run DBD in full screen i would recommend removing as this won't apply to you.

Press Windows Key + R and you should get a little Window pop up called "Run", within run type the following
then follow the path through these files

You should see a bunch of files with the extention .ini, look for the one called GameUserSettings.ini, firstly, make a copy of this and call it GameUserSettings.bk1 - this is just a backup, leave it in the same folder as it won't cause any issues being here.

Secondly, open the file up notepad or any other standard text editing software, this file contains all the settings the game will use when running, includes options that the game WON'T give you the ability to change while in-game.

These are my current settings - in every game i balance most FPS while keeping the game looking clean and not blocky

However i am playing on a RTX 3090 at 1440p, if you wish for more FPS and don't mind jeopardizing more quality then I would recommend using this instead

Everything that has a value of 0 are quality settings I classify as "cosmetic settings" - they exist the make the game look better HOWEVER disabling them won't hurt quality in anyway but will improve performance and sometimes visual clarity, EG turning down/off EffectsQuality means less particles generated, so you won't get visual slop from stuff exploding while also not requiring your GPU to render those particles so more overall performance.

In the section
use control+f to find these settings and change them to my recommended values
And lastly, at the very VERY bottom of this file copy and paste this
This will make looking around with the mouse feel a lot more responsive - however this isn't essential so don't feel the need to do this.

Save the file and create a copy and rename it to GameUserSettings.bk2, then right click GameUserSettings.ini and go to properties then make the file read only - this prevents the game from automatically restoring the settings back to the preset configuration. Also note that now changing any graphical settings while in-game will undo the changes made and will require a restart to use custom settings, this includes changing the fullscreen mode - so don't press F11.

As per this video, follow these steps:

1. Press Windows Key
   
2. Type and open Disk Clean Up
   
3. Select DirectX Shader Cache (IMO While here honestly select EVERYTHING - this can also help with game performance)
   
4. Press OK and wait for program to finish
   
5. NVIDIA Control Panel
   
6. Navigate to Manage 3D Settings>Global Settings>Shader Cache Size - Set this to DISABLED

Secondly, open RUN again and input %LocalAppData% then navigate to these directories and delete ALL FILES
Now navigate back to and follow this directory
and again delete ALL FILES within

FINALLY, I would recommend COMPLETELY restarting your PC before this step:

1. NVIDIA Control Panel
   
2. Navigate to Manage 3D Settings>Global Settings>Shader Cache Size - Set this to Driver Default UNLESS you know what you're doing

However the following section will ALSO requires a PC restart AND accesses NVIDIA Control Panel however IMO is the most technical literacy demanding - I would ONLY recommend for people who have an in-depth knowledge of NVIDIA Control Panel to do this.

If you are doing this recommendation, please make sure that within NVIDIA Control Panel that Shader Cache Size is first set back to Driver Default/Custom Value.

Part 1) This is for people who have set custom 3D settings for either global applications are for specific programs, if everything is still set to the default value then this should safely be skipped, however I would still recommend doing this regardless.

1. Download nvidiaProfileInspector[nvidiaprofileinspector.net] and save it somewhere you will remember - EG Desktop
   
2. Open nvidiaProfileInspector
   
3. At the top of the screen there should be an icon of a green arrow pointing up - click it then select Export all customized profiles
   
4. Press Select All - Alternatively if you know what you're doing and you don't wish to save certain changes feel free to select as many/little as you want.
   
5. Export profiles somewhere you will remember - C:\Users\[USER]\Desktop\nvidia profile backup\
   
6. Now continue on to Part 2)

Part 2) the reason why i recommended to make a save with nvidiaProfileInspector is because this will RESET ALL GPU settings back to default/factory settings.

1. Open NVIDIA App and navigate to DRIVERS
   
2. Either A) download the latest driver if not already downloaded or B) use current installed driver if needed
   
3. When clicking install/reinstall, select CUSTOM INSTALLATION
   
4. At the bottom, select CLEAN INSTALLATION
   
5. Continue
   
6. Once driver has been installed/reinstalled successfully, restart your PC
   
7. CONTINUE TO PART 3 ONLY IF YOU DID PART 1 - IF NOT YOU ARE DONE.

Part 3) as stated above, this only applies to those who used nvidiaProfileInspector

1. Once your PC has restarted
   
2. Open nvidiaProfileInspector
   
3. At the top look for the icon that has a green arrow pointing down - click it then select Import profile(s)
   
4. Find the file you originally saved in Step 1 and open it/reapply all customized profiles.

Now you should have completely removed all shaders and cached files from your PC, HOWEVER this will come with a drawback that for the first launch of all your games it may take longer to get going as NVIDIA will NOW need to recompile ALL SHADERS, and if games dont pre-load shader compiles prior to getting in-game then it may even cause more stutters, but this should only be a short experience as it only needs to do it once then it should go back to normal.

Before taking my advice, closing this post, and never returning make sure these few things are done

• Steam Recording is DISABLED - it sometimes gets enabled by default and can cause stability issues
  
• NVIDIA Shader Cache Size is NOT DISABLED once you plan to load back into games, have it set to Driver Default unless you know how to customize your settings
  
• If you have any other fixes that worked for you or a specific suggestion from this guide worked - leave a comment telling me what it is, i will try to update this with further suggestions.
  
• If this guide does help you, feel free to drop a positive rating as its free and if you got some Steam Points to spare I am happy to take them! And sharing it to your friends is also a pog idea, these sorts of guides take time to make and knowing that I got to help lots of people is something I love getting in return for dedicating my time.
  
• Also note, these are POTENTIAL fixes, the first suggestion may work or none could work at all!

Also, feel free to check THIS GUIDE about the program I made that will prevent you from joining high latency DBD lobbies.
Good luck gamers!