Feedback Screen Space Camera makes UI objects jitter when camera follows player

I want to handle multiple resolutions in game, I have resolution settings so player can chose one, and then main camera has component Pixel Perfect Camera with reference resolution 320x180 with crop frame x and y. So when I change resolution all canvases are getting smaller and game screen too. This is why I use screen space camera with reference resolutions 480x270. Do I handle this resolutions settings in wrong way? What should I do now. If I change UI canvas to screen space overlay bug does not appear indeed but this canvas also do not fits resolution size later when I change settings in game.

 

I noticed problem is with pixel perfect component on camera, when I delete it then bug does not appear, but I need this component.