Jumping Double QCF on Stick

I’ve been playing FG for 20+ years (mostly on NeoGeo and DreamCast) so I’m kind of used to D-Pad. Last week I’ve decided to try an arcade stick (venom ps4), because I buyed some FG games for PS4: GGXrdRev2, DBFZ, SFV. I can do most of the things better with the stick but I have troubles with jumping QCFx2 and also with…jumping back :frowning: …I can do all the GG specials (qcf+hcb, hcb+f, etc). Sometimes the Z (srk) also drops…Any advice?
I’m thinking in a octo gate…