I play the game a lot on steam and mobile. My suggestions:
1) Add a shorter kill range option. When me and my friends set it to "short", we find it's still a wider range than we'd like
2) remove (or add option to remove) the "snap on top of body when killing" mechanic, as it ruins the viability of strategies like killing in crowds in my opinion.
3) Add options that give imposters more information. Maybe have a toggle for imposters knowing where everyone is. This would allow an imposter to be more aggressive and tell better lies.
4) Allow for options that let the imposter do sabotages faster. This one is the most questionable balance-wise, but I think giving players more choice is never a bad idea.