Simple game jittering horribly on MacBook Pro.

I am currently developing an RPG on unity on my 2018 Macbook Pro. Right now the scene is extremely simple and yet I am still getting jittering both in the editor and even worse on build. I have followed many tips on how to optimize the game(for instance setting objects to static), but I feel as though there is something big that I am missing. I have attached a video. I would really appreciate any help for I have been experiencing hours and hours of frustration. It is making it impossible to develop even slightly complex scenes.

Hm, there is a lot that can slow a game down. I had once extreme problems with those sprite grass objects. Try to turn them off and see if it makes any difference.
Otherwise the correct way to figure out whats wrong check out the Profiler and profile your game. See what may cause spikes in performance: