High ASPD does matter if you are using Rolling Cutter, since it is ASPD based. At ASPD 190 you max out with 5 rolling cutters per second (it has a built in .2 second aftercast delay, and so you'll never be able to do more than 5 per second --- 190 aspd).
I was disappointed with my first GX as well, and deleted it and promptly made a new one finding that with more careful allotment of stat points and with complementary gear I was having a much better time. The triple malicious is great until you hit 120 at which point you'll want to make a Thanatos katar for your all purpose weapon.
Anyway, what kind of questions do you have? Regarding your stats, I think you're fine tbh. I suppose one can argue going over 90 AGI right now "is a waste" but it just doesn't matter.
My base stats at 139 are something like:
STR: 100 [should have kept this at 90, but eh]
AGI: 90
VIT: 69
INT: 1
DEX: 60
LUK: 90
Here's what I'd suggest that you do ---> raise your luck to about 30 (it gives you not only crit, but also ATK (every 3 luk = 1 atk)), put your dex to at least 50 so you can continue to hit the higher level monsters, and get more vit.
Now, the above is under the impression you plan to RC your way for a while (which you should). If you get a rideword +9 or upgraded Vanar helm, you will basically never need to use healing items assuming you are mobbing a decent quantity of enemies (don't go nuts, 3-8 is fine if you can kill them in a few rotations). Keep your int at 1, and possibly look into getting a +9 heroic backpack --> it'll grant you atk, aspd, resistance, etc. based on which of your stats you raise to 90 (hence why my own has stats being built around 90).
Tho I will reiterate that I do not think you need to reset your stats, at least not yet -- wait until you get higher level and see if you still regret those extra 9 points of agi. Not only that, if you plan to go for a full 175, you'll probably want 120 agi so you can take advantage of temporal agi boots.