Hey, on the site that I play on (not a mainstream site), there are a load of non-human players playing at a lot of the Hu tables. They are programmed to play GTO, and I have logged 1000's of hands against them. I'd like to learn how to beat them for a lot.

I've been analysing their stats in HEM but am unsure of how to construct my ranges in order to maximally exploit them, seeing as they don't vary their play based on you, but just play GTO based on your betsize. for example - these are their stats from the BB facing different opening sizes:

2BB - 73/15 (their 3betting value range is A10o+ and their 'bluffs' are suited connector type hands - as your opening size increases, the amount of bluffs they have in their 3bettign range decreases.)

3BB - 53/13

4BB - 44/14 (I assume the 3bet is actually less than 14, but the sample size is smaller.)

20BB - 13/8 (3bets and calls TT+ AJo+)Taking these preflop stats into account, I'm not sure what's the best sizing to use with my different hands. 

What should i be considering here? What stats should I look at postflop, in order to look for where to exploit them? Postflop, again they generally play GTO where they'll fold a % of their range based on what you bet, and RR with a 2:1 value to bluff ratio or similar (using gushots/OESD hands as their bluffs)

I've been varying my betsize based on my hand, for example, if I had 2nd pair type hand, I'll bet maybe 1/3 pot, because that makes me profitable against his calling range because it's so wide considering I bet so small, and I've been overbetting with my near nut hands knowing that he'll still call with the top X% of their range and I'll be good against it...though I'm not sure if this makes me nut hands more profitable than say, betting 2/3 pot would be?

They also have no leading range, and if they C/C the turn they will always check the river, and I have been minbetting the turn with very weak hands with some SD value such as A high, and checking back the river. I can provide any other stats if need be.

Any help would be greatly appreciated, thank you.