Email slow in Uploading

Email slow in Uploading

I am a Canadian customer of zoho and find that my email page is very slow in loading...sometimes does not load at all and I have to cancel out and try again.  Clearing the cookie cache &  history does not shorten the surprising delay. 
I have another (& free) account that loads 'zip, zip'.
It seems zoho was quicker in an earlier incarnation???  So much for updates....less with more??
~barbara