Mi4c Browser Video Player "lag"

Jan 27, 2016
Hi all!
In new on this forum, new with my mi4c.
I have tested video player on stock browser and i have noticed a little slowdowns-lag. Tested on YouTube desktop, rapidvideo and onthers streaming platforms.
This does not happens with chrome.
Any way to fix this?

6.1.21 dev xiaomi.EU
Mi4c 32gb