My session stats is 20/16/af1.25/3bet4.8 416 hands

The villain is 18/15/af16.0/3bet6.5 Cbet F70 T75 R100 360 hands

I keep hoping he slows down but he doesn't.

Is there anyway he has QJ or missed FD here?

This guy is tight but also super aggressive postflop.

Party, $2/$4 No Limit Hold'em Cash, 5 Players

Hero (BTN): $400 (100 bb)
SB: $464.21 (116.1 bb)
MP: $511.50 (127.9 bb)
BB: $1,320.80 (330.2 bb)
CO: $542.20 (135.6 bb)

Preflop: Hero is BTN with K J
MP raises to $12, CO folds, Hero calls $12, 2 folds

Flop: ($30) K T 5 (2 players)
MP bets $22, Hero calls $22

Turn: ($74) 3 (2 players)
MP bets $52, Hero calls $52

River: ($178) 4 (2 players)
MP bets $314, Hero ???

You could make an argument that you're near the top of your range and therefor should call but I find most people tend to lean towards being pretty valueheavy when a gazillion draws missed. He can also go decently light (KQ+) for value pretty comfortably if he suspects you're frustrated. Im also guessing this guy opens a veeeery tight range from MP, making it a fold for me.

"This guy is tight but also super aggressive postflop."

If true- There is alot of bluffs in his range, and you are at the near top of your range so just call.

Probably just fold KJ preflop only 100bb effective against this tight of a player in these positions, especially if he's capable of mixing in plays like this one as you suggest he is. If you're calling KJs preflop, then you should not be 'hoping he slows down.' Instead, you should hope he barrels you often enough that calling down with a weaker top pair hand, basically a pure bluff catcher against this tight of a player (he doesn't have K9 or QQ here), becomes a winning play. Otherwise, calling creates this type of poor reverse implied odds situation against his range (you win a little with top pair against a bluff or lose a lot with it against a better hand).

If he plays his entire turn betting range this way, it's probably a close fold. If he doesn't do it for thinner value, i.e. with KQ or AK and always bluffs this way, then it's probably a close call. It all depends how often and with how many combos he bets on the turn and then uses to bluff on the river (note: they're two independent decisions).

I will say that in my experience and in general that the better tight players will use their image to their advantage and barrel a bit more often than they 'should,' especially against lose-splashy guys preflop.

preflop i think is bad.

if you fold pre, you avoid this river spot which a good player can put you in like 80% of the time when you don't have enough info about his play other than he seems tight.