I saw that iIt was previously requested by someone else and rejected due to the fact that the modpack didn't provide server pack in the previous version, however, now it does.
This modpack alone can boost the performance of my singleplayer world roughly 2 to 3 folds, I believe it alters the server-side of the game a lot to achieve this so I don't put a lot of hope in getting this modpack here but always good to have more performance boost right?
I get roughly 60 ~ 90 fps in default mc, 120 ~ 200 fps with this modpack and lower memory usage while using it. 