Disroot Email Extremely Slow

For the last 2 weeks I have experienced extremely slow email service with disroot. My browser is Google Chrome. Loading Disroot along with opening the emails is extremely slow. probably slower than using AOL Dial up back in the 90’s, Any help would be appreciated.

Can you please fill in the issue template, provide detailed information about your environment and explain why do you think that your “Disroot” (what is it?) problems are caused by Nextcloud.