From what I remember, they already nerfed the PAVA spray max use time:
However, I think that it would be good to make sure the reach distance is reasonable (considering this is Roblox and players run away fast), and I think you should still be able to equip tools (with a longer “equip time” to show the delay of being unable to see) and making your screen almost invisible, potentially some distortion effects for the remaining visibility.
PAVA should have a slight equip time too so that it isn’t instant, but maybe 0.25 seconds - very minimal, as it is a small canister in the holder/pouch.
I think you should still run a bit slower too.
PAVA is horrendous to experience in real life.