Zoho Writer "deleting" pages and then slowly readding them, during which there is considerable lag.
So, when I'm writing using the Writer, sometimes I notice the page count start to slowly drop around 1 page a second before getting to around 430 pages.

Then, as soon as it hits that, it immediately starts to reload the pages back to the normal amount, as if I had hit refresh and it's trying to reload the document from beginning to end.
When this happens, there is considerable input lag, to the point I can only type around a letter a second, and if I don't notice and keep typing, the delay is around 3-5 seconds before the word is fully typed on the page.
Once the pages revert back to the normal 524, the lag disappears.
What is going on? What can I do? The doc is around 180k words, I am trying to write a fanfiction.