How can i get higher clw%?

How could i get my clv to rise

Your CLV is rising. If you want it even higher then bet on higher value bets.

This post might help on how to reduce variance.

bet closer to match start time if you can. also, prioritize main leagues over lower leagues - those are going to have more liquidity, and lines will not move as much, so you are less likely to get a negative line movement (and lower CLV)