Lags when I change F5

I have a problem. When I use F5 or just walk my character stops or walks by itself. I tried uninstalling and reinstalling the game but the error persisted. Please fix this

Mods:
1. Lots more food - Legopitstop
2. Simple Vehicles 1.4.3 - MCPLAYS
3. More body actions - sirob
4. Rayions combat system 

And one application
1. Orzx keyboard