What are you doing that makes Vim lag? In my experience (on much weaker hardware) it only lags noticeably when you do wildly unusual stuff, e.g. huge files or files with huge lines.
Scala (700 lines/file)
Managed to do more with nvim - yet to try syntactic again, thatll be the real test) but so far amuch more stable experience movement wise. (the files i work on are huge and im tasked with refactoring, so i cant avoid the hugeness)