AutoInput Late action

Hello,
My problem task is an exit task from a bluetooth connect profile and is about leaving the car. It's a mix of Tasker tasks (media volume, display timeout) and Autoinput ones (turn off / close GPS, bt tether, radio, navi...). It takes about 5 sec. for a 1st autoinput action to take place regardless of timeout and or wait settings, the next actions are quick, as expected.
What can be done to reduce this delay? Would be good to leave the car as soon as possible. Android 7, samsung s8, no root.
Thanks