Is it the frame rate that's lagging or the controls? If it's the latter and maybe double check that any inputs you have set up are are frame rate independent :)
The frame rate is fine, but what I notice is everything feels delayed with controls, but also movement. I also have certain scripts that just break on build, but work perfect in editor. The only thing I can think is my code is the issue so I will probably just create a new project and see what I can restore while building to see if anything specific is the issue. Thanks for the suggestion.