Have you tried VS code? It seems your arguments about performance are theoretical but in my experience i have run into none of what you're describing could happ

Have you tried VS code? It seems your arguments about performance are theoretical but in my experience i have run into none of what you're describing could happen on a 5 year old macbook air. A 14% cpu idle due to a cursor is a bug that will be squashed. The software experience, in practice, is quite impressive.