I get 250 yards with my driver but this is the CARRY distance and the ball may just rolls additionally about 5 yards. There seems to be some back spin on my shots.

I was told that to add rolling distance I need to generate top-spin. My driver direction is mostly straight, hence I do not want to introduce any draw to my shots.

Fyi
Ball position: Left heel
Ball height: medium, equator aligned with top edge of the driver
Driver: 9 deg
Ball trajectory: about 35-45 deg

PLEASE advise how to get the ball rolling to give additional distance.

Thanks