Forge loader is lagging but other loaders (like fabric or vanilla) are perfectly normal.

[SpacySkydiver]

Completely out of the blue my forge loader is lagging, although at 120 fps. Like when I turn it lags, or hit mobs it lags, or run sometimes although staying at 120 fps.

I found another person having a similar problem: 

But there was no solution I dont think. I tried everything from:

1. Updating my computer

2. Updating/reinstalling forge

3. Testing if allocated memory was problem (if it was low or high or mid nothing changed)

4. Adding various performance mods

5. Deleting most of my profiles if storage was a problem.

 

Really not sure what to do next or if forge is just broken for ever for me now.