No. It was "better" but still not "good/great"
The P-40N was a last-ditch effort to make the P-40s competitive in a late war atmosphere. However, they were still only just barely catching up to planes that had been in combat for a year already. Not enough performance, and too late.
Don't get me wrong, they built a lot and they flew 'em, but they couldn't compete with the P-38s, P-47s, and P-51s already in service.