Why did you decide to RFI for 20bb? I'm pretty sure that's too big even with a straddle
I think you kind of put yourself in the box here with this one.
Opening to such a large sizing really makes it easy on the people who are playing behind you. They are only going to continue with
hands that have really good
equity and play well post flop while being able to assume you have a fairly good hand and will probably be looking to put more money in the pot post flop, which will also make their lives easier as they will be able to choose is and when to play for your full 200bb stack while having position on you.
I would imagine his calling range would have a large amount of suited Aces, off suit Ax and some pocket pairs, some suited broadways mixed in maybe but your preflop sizing probably priced them out.
vs that given range the flop is pretty bad for you, I'm not sure if the play would be to check or to bet given what we perceive his range make up to be, I think it would be heavily weighted towards Ax but we're uncapped and opened from EP with a huge bet sizing indicating a lot of strength.
Once facing the bet I think the decision depends on what you think villain is doing with hands like pocket pairs that called, both above and below your TT holdings.
As played I think the fold is the best option, You beat 88 and 99 on this flop and they probably don't start betting pot as you might still be uncapped.
Size up to 6 7 and 8bb if your table is full of loose passive players, don't make their decisions easy the point of poker is to make their lives hard