there are unity commands you can use in game by pressing L. idk any of the commands but you should join the discord and king can help you out
Unreal Engine commands*
Most of the commands can be found here:
https://dev.epicgames.com/documentation/en-us/unreal-engine/scalability-reference-for-unreal-engine
Important ones are (Press L to open console):
dof 0/1 - Disabled/Enables Depth of Field effect
sg.PostProcessQuality 0 - Disabled Ambient Occlusion and some other visual effects
r.PostProcessAAQuality 0 - Disables Anti Aliasing
r.SetRes AxBf - changes screen resolution, execute this command after setting the resolution to "custom" in the settings, A is screen width, B is screen height