WireGuard client crashing router config page

I have a GL-X750v2 with firmware 3.212. After setting up my VPN with wireguard client, the page gets blocked and firefox asks me if I want to close the tab. After around 2 minutes it gets unblocked, then I am able to change VPN server location.

Which service provider? Mullvad?

yes alzhao, it is mullvad…

That is because there are more than 400 profiles and the browser is slow to render that.

You can use a fast computer.

The UI actually can be optimized so that it renders faster.

That would be great.