@susankayequinn One of the staff at work were complaining that word was slow when she was WFH. It indeed was - she could type "hello" and give a thumbs up to the webcam before the l's even appeared on screen.

After much stuffing about not improving anything, we eventually disabled grammarly's office plugin, and it was back to normal.

I'm guessing there was some latency uploading her document to "zee cloud" repeatedly.