I can relate. Huge fan of ST. I switched to VSC because of some integrations that were not available on ST. I hated it, it was only out of necessity. Everything on VSC just felt... sluggish, compared to ST. There's this barely noticeable input lag. Autocomplete seems to lag ever so slightly. The startup is just a smidge too slow. And so on in all dimensions.

Alas, now I'm used to it, and I can't go back because of the same integrations that made me switch in the first place, and new ones I've found since. All the crispness and snappiness is gone in favor of deep features. I accidentally became an IDE-guy.