Some of the suggestions so far are wrong, some are right.

1. VPIP/PFR is fine. You're playing all the big hands you should in fullring, and that's all you need to do vs poor players. Vs good players you need to use your image to keep them from exploiting you. I doubt a 20/16 will make more than a 13/9 in this game when both are equally skilled.

2. AtSB% is fine. It doesn't need to be higher, but it definitely can be. Pushing the edge of stealing the blinds doesn't necessarily mean your winrate will increase because there will be backlash into other aspects of the game. I have done everthing from 25% AtSB to 65% AtSB and have found very little difference in overall LP results.

3. W$WSF is low because you are running poorly, most likely. Sample size is super super small for attempting to calculate totals.

4. WtSD is too high, and I'll get to why next.

5. Turn and river AF is too low. They should both be at least 2, and they should probably both be about the same. You raise those by value betting more thinly. This will make WtSD go down, but WR go up. I personally wish I could be at 3 turn and river AF, but not quite, it seems.

6. Your cbet is kinda low, but not necessarily too low. People kinda forget what the purpose of cbetting when we're not going for obvious value is. We want to cbet enough so if we're never ever called or raised on the flop with anything, we'll make money. I do not advocate a ton of cbetting, and I personally think I am very good at it because I believe my thinking opponents can't correctly play back at me when I do it, especially since I try to choose to do them on flops where I can double barrel more often. I'm around 55% cbet. They say 60% is low, but my WR says otherwise.

7. The games are harder.

8. I give out too much awesome information.