When I use melee it's like 1 hit per second
When I see other people melee they're running like crazy and hitting really fast too.
I know it might be lag but no-one's ping was over 200, most were under 100, and it doesn't look like hacks either (well maybe except for the guy I had to unload TWO Feline clips on to kill...) Why does it always seem like this

I've found that when in close my opponent wins the melee probably 7 out of 10 times. He always seems able to hit more often than me, even though I'm tapping the melee key as quick as I can .