Should I have seen results after 2nd Vivace Treatment? How long can I wait for 3rd Treatment? (photos)

I am 34f. The quality &texture of my skin is bad from sun damage. I have hyper pigmentation, sun spots, dull skin. Advised to do series of 3 vivace 4wks apart for texture,pores & discoloration. Then, 3 BBL Lasers in fall for sun spots. After 2 vivace treatments Ive seen minimal results, only slight improvement in texture. Doc says results are over time. True? Is it worth it to do 3rd treatment for $800? Should I wait til after BBL to decide on 3rd vivace or do they need to be every 4 wks