I have quite a large modpack I use with my friends, and this mod would be a huge QoL improvement, if not for the constant game freezes we encounter whanever we open our inventory or approach any crafting stations. Guess it's designed for smaller packs. (I'm also using 64-bit modloader and server).
Some of the bigger mods I use in case somebody has same problems with freezing:
Calamity
Fargo's Souls & Mutant
imkSushi's mods
DNI Equipment Upgrade
Infinity
Elements Awoken
Spirit
Magic Storage - Extra