slow to receive email

slow to receive email

I just switched to Zoho for email hosting. 

So far I'm disappointed in the speed in which my emails are coming through. I've tested it using several different accounts of mine. Each time it takes several minutes to receive (3-10ish). It doesn't matter if I'm using my desktop (Outlook) or my phone (Bluemail). 

Do you have any suggestions? If this is normal, then I will have to look at using another email host. Thank you.