Game was breaking and I ended up HU vs villain. He was playing on 3 or 4 other tables and seemed positionally aware 3betting 20% OTB. This was the first time he's 4bet over ~200 hands. This was one of the first 10 hands HU vs villain.

1) Is my 5-bet good? Obviously I'm ahead of his range preflop but my hand doesn't play postflop super well. If he calls (he does), the pot is $18.94 and the effective stacks are $21.07 after that and I'm OOP

2) Would calling his 4-bet be a better play? I don't really like the idea of that either. I wouldn't have the betting lead, Im OOP and my hand still doesn't play super well. The only thing is that the PSR is way bigger so I can fold high connected flops and c/jam lower disconnected flops with a semi-disguised hand?

3) Flop comes [8s Qs Jd]. I think this flop smacks his range in the face and I have no way to improve my hand. Is this a fine c/f?

Thanks