Thanks, — Don't know why i haven't figured it out by myself, lol))
And yes - difference is drammatic, and i only needed like 9000 iteration cycle
As i suspected: Left style: 38 fps, 80% cpu usage, Right: 75 fps, 70% cpu
That explains this poor fps with so little going on on the screen.
Also (maybe this will be usefull to anyone) i've noticed when you change the same property of an effect of Sprite obj (i ofen use "Adjust HSL") twice in same tick (for example Hue=70...Hue=85) performance drops badly, like -15-20 fps badly from a single doubled call. Ofcoarse i have fairly weak cpu (Dual Core 3.2) but still...