Minecraft restarted and version changed. Why is the game suddenly so slow?

pu
5

I played with 90fps Minecraft Vanilla-1.14.4. Afterwards, I tried a few things with the version Aristois-1.14.4 and immediately changed back to Vanilla-1.14.4. Minecraft now needs 8GB Ram alone in the Menu / Title Screen. Even if I increase the RAM limit to 14GB (still only 8GB are used), restart the computer or close all other apps. Mincraft runs at once only with about 1 FPS. Why? It ran smoothly until the reboot of Minecraft (without exceptions).

P.S.:

Battery: 100%
Aristois already used several times

Can someone help me Thank you

vo

How did you change? What kind of launcher?

Al

Minecraft quickly takes your CPU and throws it through the case

pu

Standart mc launcher

pu

Mc stopped minecraft launcher started and the version changed

pu

The cpu has no problem, it should have something to do with the memory memory has monitored it via the task manager