Like I said… your tempo is probably too slow if you can't get a 30-footer to the hole on slow greens.
You're not hitting a lot of greens, so even two- and three-putting that often is not a great sign. You're not often putting from 40 feet away like some people who hit more greens. You're putting after a chip or a pitch shot more often, and those tend to be shorter putts.
Start a Member Swing topic or post video of yourself hitting long putts to it if you have one already.