Does Joy to Key cause lag?

I am using a Qanba Q1 PS3 stick but games like KI and SF5 it won’t work so I use Joy to Key.

But for some reason in battle I miss uppercuts and quarter circles no idea why, the character will just trip even though I swear I am doing it correct. But in practice it works fine.

So I am wondering if joy to key might be introducing some lag here where I have to use the stick faster or something,.

Yeah Joy to Key cause some lag inputs, its not recommended for fighting games.

Anyway I can get my Qanba Q1 to connect to this game? should I have bought the 360 version instead? though its too late for that now.