i play 50nl.
those are not real ranges, i made up that example just to make a point.

this is a real example: 50nl FR

villain ATS is 40% LP, he has a 70% fold to 3bet and a 5% 4bet in LP( aprox 4k hands)
if i have JJ, i will mostly 3bet his LP opening, sometimes just call OOP pre and 95% of times i will fold to his 4bet.

i think i could do better if i would flat his 4bet sometimes , 5bet him and still fold it the remaining procentage.
i could do ok w/ JJ in my 5bet since i only 5bet AA/KK

but i am afraid