Speed 3 Acc 2+ Damage 3
And if he rolls 5,6, 8 he rolls nine times for hits?
This is a very common misconception.
Speed is how many hits are possible. 1 speed = 1 die = 1 potential hit location.
Acc you have down. hits succeed on that number or higher.
Damage is applied to each hit location. So if there are 5 hits at 1 damage, roll 5 hit locations. If there's 1 hit for 20 damage, roll a single hit location, lose all its armor, take a light and heavy injury, fall down, and take a severe injury.
Think of it like a FaaallCON PUNCH! (Speed 1 acc 3+ dam 10). He's not hitting you in the head, then arms, then legs, then head, then the body twice, etc... He's hitting you in the chest, and he's hitting you very very hard.