What could be the reason for the slowdown in text input in Yandex.Browser?

Question

Browsers

When entering text in Yandex.Browser on some sites, it is especially pronounced when entering in VK - the text does not appear immediately, but after 1-2 seconds, falling out immediately in a bundle, or one at a time, but with a delay.
Any special add-ons / plugins - not included. Screenshot once: take.ms/r3gyg , screenshot two: take.ms/LWCaJ.
Maybe someone has already encountered? Long surfing on forums and sites - did not give results.

Answer 1

Most likely you have problems with the connection or the speed of the scripts. The site makes ajax requests as you type - and can't get a response in time, hence the delay.