I play regular tables on Pokerstars and I was looking into my W$WSF stat and couldn't figure out if its good or bad. I've also posted some other stats to give an idea.

I table select, always have a what on my table and play about 9-12 tables. Lately I've been trying to fight more for post flop pots and have seen my W$WSF rise from 39 to 43. Anyway here are some stats for a 25k sample.

Stats for last 25k hands at NL 10

VPIP:22.3
PFR:17.6
3-bet:5.26
Flop C-Bet%:53
Flop C-Bet success:51.1
Turn C-Bet%:64.5
WTSD:23.0
W$SD:56.5
W$WSF:40.5
W$WSF Rating: 0.91

I understand that my flop cbet% is a bit low and my flop c-bet success seems to be high. Turn c-bet is also high, WTSD is low and W$SD is high. Does that mean my W$WSF is low? cause maybe if I start fighting for post flop spots more and tweak some plays here or there I could maybe see a trend of my c-bet% getting higher, cbet success getting lower.

Or keeping W$SD in mind is my W$WSF ok?

Also I wanted to know opinions on this.

Say I normally cbet 2/3 on flop then I need my cbets to work about 40% of the times so should my cbet success% be close to 40% and 51% is clearly high and I should thrown in more bluffs which will in effect make my cbet% go up and cbet success go down? Or should I not bother about that at NL 10?

I am not trying to model my game around one stat, I'm just trying to find out if there is a leak/trend of passiveness thats unprofitable based on these stats I mentioned.

The single best way to increase WWSF will be to stab at orphan pots. It looks like you should also be value betting more.

How much should the W$WSF be?

With a wtsd and wwsf so low and a w$sd so high, I have a feeling you are folding a bit too much by the river. Try stationing against loose fish a bit more.

It depends how many multiway pots you find yourself in.
Fortunately, the WWSF Rating takes this into account.
A W$WSF Rating of 0.91 indicates you're not winning your "share" of pots. (It should be closer to, or indeed greater than, 1.00 if you want to crush the game.)
Since you're playing fairly tight/reg, your range should be strong enough to win more than half the heads up pots you play, so I think you're probably not bluffing enough, or you're getting bluffed off the best hand a lot.
If you're using HEM, have a look at the OPPONENTS tab, and see the WWSF numbers for the biggest winners. They are likely a bit more aggressive than you, but also don't fold so easily.

I checked the opponents tab, of the biggest winners that I got, I'm listing W$WSF for top 10 on my stake.

41.5
38.1
41.9
42.8
40.3
51
43.5
48.1
47.7
43.4

Mean 43.83
Median 43.1
Max 51
Min 38.1

The numbers are for highest profit from highest to lowest and I got big samples on all these guys.

I don't have my database on this computer, but those numbers seem legit. Getting your WWSF number up from 40 to 43 can probably have a significant effect on your winrate in the long run.
It's not something that is particularly easy to fix, however. In your case (based on the other stats), fighting for a few more pots, and folding less often would probably help. For other players, profit would be increased by tightening up and easing back on the aggression. After all, the aim of the game isn't to win pots, it's to maximise profit.