According to Labymod I have 100 FPS but I can't move because it is so bad.
Your internet connection can be on a server.
Otherwise, it would be possible that your hard drive would not be able to comply quickly enough
Hm look in the task manager
Only online or offline?
If only online, enter "/ ping" in the chat on any server.
Get Optifine
What monitor do you have?
These are probably FPS drops, but only helps to turn down the quality!
It was Labymod, thanks anyway
Was due to Labymod, no idea why
I had a laptop but it was anyway due to Labymod.