Hi,

I would start by calling his raise and see what he does OTT. Our hand is too good to fold OTF imo and GII OTF is bad as he will probably not shove worst.

Clearly not a great spot, he can't really have draws. If he barrels OTT I don't know, depends on the turn and his sizing, if it's something like a 6 and he barrels pretty big I think we can fold on a 2 vs a mid pot size bet we can probably call one more and give up OTR.

Some bad regs just raise this flop with air thinking we miss it a lot and give up when called, so call once and reevaluate OTT is pretty standard. I'm probably not calling a 3 barrel shove anyway.

86,T8 he can have, obv this guy looks super nitty and might not even have a bluff raising range here, but still he might be raising worse for value so call and see what happens OTT.