I'd raise flop, prob call vs a 3b and giveup if villain followed through ott. Folding vs a 3b is also an option.

Once we call, I'd fold turn. We have tons of K high and A high flushes in our range, sets are also better calls...no need to defend low flushes.

I would also raise flop almost always. I can see vill donking sets and nut FDs.
As played I think turn is mostly a fold, but it's not a big mistake to call I guess.

I'm also raising the flop - there are sets, overpais + fd, nut FD, and our hand is still vulnerable.

As played, I'm also folding turn - gross, sure, but I don't expect him to be bluffing here (like, most of his bluffs got there, so I think he's just going for value, and I don't see what you beat from his value range.

I was thinking I'd flat flop as well, but I think the above arguments are solid.

And yeah, it seems like we can fold the turn. We have about 5% equity vs higher flushes with our two outs, and that's not enough IO (we'd need to win 2.25 x 20)

yeah I agree with everything above, we have blockers for flushes and I would see him more as a nit than as a reg, in the flop his range his imo very lean towards sets and flush draws cause I would think is more usual for the majority of regs/nits to either x/c or x/r with a high card flush here not donk so I would actually raise and gii on the flop. Also we could discard some A high flushes he would 3bet pre with, Asks, AsQs, KsQs, etc