Good Job On Octane <3

Being a better shot is how you counter anybody with a speed boost. Bangalore gets a speed boost when you get shot at, you don't even have to be hit. Bloodhound has the same movespeed boost for 35 or 40 seconds, doesn't have to weigh spending 10 life every 8 seconds, and doesn't lose the speed if you decide you don't want it anymore. The answer is quite literally just getting better at the game which will come with more experience fighting someone moving fast all the time.