You mean the fact that we knew many months that it wasn’t going to keep save files, and Patreons like myself are the ones that voted for a rehaul, because how buggy and slow the old version was
I just played from the beginning a few weeks ago because my 1.2 or 1.4 save was bugged as hell, did around 60% and got bored so i stoped playing. So now he remake pretty much the old content in the same crap rpgm engine? Thasts like putting strawberry's on shit, it still remains shit!
There are only 2 reasons to chose rpg maker, stretch low content (run from a to b to c to d etc.) or you are to stupid or to lazy to read about any programing languages. ( from my experience rpgm tend to random crash (the more plugins you use the worser)).
That was already my 5 or 6 playtrought because i had to start over and over again because of bugs that didn't even got fixed or the fix didn't even helped. If he still sticks to rpgm i doubt the code quality will be any better than the original. (full of bugs like the original game).
TLDR: I doubt the new version is less bugged and faster.