IMAP Speed in US Significantly Decayed

IMAP Speed in US Significantly Decayed

For at least the last 5 hours, Zoho Mail's servers have been transferring data incredibly slowly via IMAP. Normally we use IMAP to store data on our servers, and tasks are taking ~100x longer. Anyone else seeing incredibly slow IMAP speeds (particularly at a larger scale)? This is happening across multiple domains, email addresses, etc.