Installed TCI High Stall 25k to 28k

Modified stock item in exchange

Just wondering if this is how it is meant to work?

Brake applied, hit the gas it will stall up to 1500 then start crepping forward, by 2000 the rear wheels start to turn

Off the lights, WOT it will hit 2500 then ramp up to speed limit

Pulling out on to street, 50% throttle from 20km to 80km sits around 3k

Any thoughts?