Low FPS rates in 20w22a

I have a survival world that i have been playing since 20w20a and i loaded up 20w22a on my world. there was a insane difference is FPS to the point that singleplayer is unplayable with the current snapshot. on 20w20a, i have 15 render distance and 30FPS. on 20w22a, i had 3 render distance and 10FPS.