VERY URGENT - Zoho Writer Currently Unsuable

VERY URGENT - Zoho Writer Currently Unsuable

Hello

We have a Zoho One Account. I'm currently trying to edit a document in Zoho Writer. I can type in a whole sentence and no text will appear for 5 - 10 seconds, if at all, whilst the fan on my laptop spins up to madness. It seems to be the autosave kicking in. 

I simply can't do my job with this situation.

I have checked my broadband speed, restarted my computer, tried Zoho Writer in about 3 different browsers, all with the same result.