As a voruna player the time to swap passives is severely nerfed and takes way to long to change. I really would like it swapped to it being reverted to the normal times but I would prefer if we had the choice to adjust the timings for swapping passives or abilities like ivara's quiver, lavos' elemental selection, vauban's traps and etc.
Basically to adjust timing from a toggle/select on all abilities and passives.
I'm not sure if this exists already but I absolutely hate the voruna change, I've always taken the passives as a last second swap, not a preparation to go into a fight.