This way I see it
When using the upgrades I get a bit faster each time, when playing on my other pc when fft didn't have the feature where you could link your fft or Kong accounts, I was able to go up to 90-98 mph. Since my footwork upgrade is at level 2 or 2%, I can go up to 130-150 from just Strafe jumping across a long area to run away from enemy players.
I see the community thinks that upgrades are really useless in alot of ways but what I see is that it can change your heroe over time which can make you better than the other player.
I voted no, I just felt like wrighting this post out that if you did Nerf the speed, then max footwork upgrade would be too OP for anyone.