I have been realizing that the lighting quality really crashes your frame rates on computers with low quality Graphics cards. it would be a great idea if the developers cold make more simple lighting quality. and i don't mind if it passes through vehicles or buildings (witch i'm guessing makes it have issues with frame rates). another thing is adding the HDR toggle setting back because it is really intense on frame rates. post other ideas for graphics options in the comments
The lowest lighting quality really is the simplest, no way to make simpler. Also HDR didn't affect performance, it just makes particles work.