Teemo rework Problems

Teemo use to be a fun champ to play with great map presence, however after his new rework the best part about him is gone. I suggest that teemo's ult gets a small buff either in ap scaling or make his shrooms last longer. The ap scaling can be increased to lets say 1.2 - 1.5%. While the timer could be made to last for 8 minutes instead of 5, or the time for each shroom could decrease as you upgrade his ult. I understand the bouncing helps more in team fights now, however with how long it takes to arm each shroom it takes alot of skill/luck to make the shroom be truly effective in the fight.