Looool. So you obviously don't understand how fast it is. This is senseless.
It wouldn't matter if Hulk had a thousand of mobs to help him. Still they would all be wiped out in a blink of an eye. They wouldn't be able to even see someone that fast so exactly HOW they would gang up on him? Are you claiming it's possible to see an item that passes you by 300 000 km/h?
Hulk's strength isn't a factor here. His durability is, though. Still it wouldn't be enough to stand a chance someone with Superman's strength landing millions of punches on him before he could even react.
You need to understand some physics.