Photoshop drains battery even when plugged on better or best performance

[Mateusz Backi]

i already posted here on forum regarding similar issue but didn't get any answer. Anyway i'm still trying to make use of my surfacebook and downloaded new photoshop. Sadly it can drain battery even on better performance when plugged (around 10% per 40 min, this doesn't happen in tablet mode (can use it without dischargin even on best performance), only in laptop mode.
Does anybody else has similar experience? Or maybe i should return and swap this unit?

Would be thankful for any help

 

[anon(5327127)]

Doesn't Adobe use the nVidia card for acceleration? Hence why when un-docked you're using the intel gpu.