it looks you have some problem like me, I cant get more of 300ps from my car after the car has a full milltek system, I dont understand why, cupra with only remap has normaly more them 300 ps, my car has only 297ps and I have new map from p-torque. I am very dissopointed with the results.
A standard Cupra pulls very well, a 297ps cupra must be awesome. Don't get hung up on the figures. Too much more will mean new clutch time. I think at your power levels you've got the penny and the bun. Enjoy the motor. I recently had a test drive in a 500 bhp merc, it wasn't half as fast as i was expecting. We always want more.