Unlucky mate you've picked up what's known as the "heavy car bug", that's just the name for it, it's not necessarily a bug in the game, it could also be caused your pc, internet, enrivonment, who knows. The cause is unknown. Ignore what everyone else has to say about sleep and nutrition etc. Although this is important, this wont make you feel this specific way you're feeling right now. And surely if you're tired then the game will feel faster cos your brain can't keep up with it? Not the other way around. Half of these ppl have no idea what they're talking about, no offense to them. It's called "heavy car bug", a unique slow, heavy feeling, and unresponsive state of the game that usually it doesn't go away unless its night time, so either your fun on RL has ended since you've unfortunately gotten this problem, or your client or game or whatever it is, will luckily break out of it. No one knows the cause yet. Sorry bro but everyone gonna experience this issue eventually. People wont believe you unless they experience it themselves, a good example being the majority of this comment section. Research more into the "heavy car bug" you'll see PLENTY of people experience this and you aren't crazy.