Thanks for the visit. You wouldn't believe how slow I was when I first started here. I was pretty excited when I finally broke 5 minutes on a puzzle. But you do get faster the more you play. And I found that if you avoid the easier puzzles (like the 4 x 4 grids) your scores get higher. That's what I've been doing the last few months and my average points per game went way up.
pcuser has definitely been an inspiration. He's really fast and has high points after only a few months of solving. But he's exceptional. Most of us take longer to work up to the higher scores.
I guess the most important thing is to have fun while you're solving. And hopefully, don't get as addicted as I am.