I know someone said to diffuse right away to eliminate frizz but for me, that has the opposite effect.
I need to put in my product then let my hair air dry for at least 30 minutes (longer if possible) then I diffuse for like, 2 minutes, literally for some volume. I have to do this no matter what products I use or I get horrible frizz and no curl definition at all, yet I cannot skip the diffusing part of it or my hair is too flat on top.
Try that and see if doesn't help some, since I see that you tried diffusing right away and got a halo of frizz..
HG's: Dep Sport Gel used over a leave in (I alternate between a moisturizing LI and a protein LI, depending on what my hair needs) and Giovanni LA Hold Hair Spritz
Method: Air dry for 20 to 30 minutes, then blow dry the under sections for about 5 minutes for volume.
2/3 mix waves/curls - coarse, frizz prone, med. thick, porous, at-home color for gray, protein sensitive but I still need it sometimes, and I can't use glycerin in high humidity, NOT CG, wash with regular S&C 2x a week.