vk.com very slow

Hi great program/extension , LOVE IT

I am able to download from vk.com however if i want 100 tracks it used to jump by 

10-20-30

now it goes 1-2-3  and stops at say 15  

i have tried several times but still the same

thanks

here is my info 

Browser: Chrome 84.0.4104 Windows
User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4104.0 Safari/537.36
Extension: chameleon 8.81