Using full range of motion will make you use lighter weights. That's just the way it is. Don't worry, that will make you stronger in the long run. When you do DB overhead presses, come all the way down. I actually touch the dumbells to my shoulders. Same with DB bench press where I actually touch the DB's to my chest. The fact that your DB presses are so high compared to your BB work tells me that you're probably not using enough range of motion. Don't be afraid to go down in weight and do it right. Slight inward angle of the forearms is actually normal on any DB presses, so don't worry about that.
As for rows, there's a reason hardly anyone does them correctly; they're hard and you can use a lot more weight if you do it wrong. Stick to your guns. Flat back, just a little body movement, pull with your elbows and squeeze your back at the top.
Current PRs at 242, raw w/ wraps- 525, 355, 605, 1485
Roboro tui, perimo vester adversarius
(Build yourself, destroy your enemy)