Zoho Desk unresponsive on Microsoft Edge

Zoho Desk unresponsive on Microsoft Edge

I have Edge, Firefox and Chrome browsers installed on my PC. Zoho Desk on Edge is barely usable. Clicking on any option, even for example to remove someone from a reply, causes the message "Wait. The page is not responding". This can last for anything from 20 seconds to a few minutes. Doing the same actions in Firefox and Chrome are quick enough, mostly taking no more than a second or two.

Are there any known compatibility issues with Edge?