NOTE: I have only done minimal testing with this version of the modpack so your experience may vary.
Many people have been asking for a "lite" version of the Sensible MC modpack. Here it is. I've cut down the original pack to what I would consider the "bare minimum" mods for the pack. That doesn't mean it's all client-side or that it will 100% run better for you, it just means I removed a bunch of mods that likely contributed to performance problems the most. I'd say playing with this modpack is one of the most "vanilla-friendly" packs I've made so far. There is a lot of added content but it's mostly just a lot of the quality of life mods on their own.
Here's everything I've changed:

Sensible MC - продуманная сборка модов для Майнкрафт, которая улучшает производительность, графику и геймплей, не ломая ванильное ощущение игры. Оптимизация, визуальные улучшения и новые механики - всё в одном.