Scrivener running slow

My Scrivener has started running slow and a bit erratic. Just wondering whether anyone else is having an issue?
I am running OS 14.4 - so not sure if it has anything to do with the latest mac update, an issue with Dropbox or just my laptop. Or the program itself is showing a bug.
I only open one project at a time - so I don’t think it has anything to do with the size of the project. The present one is a “dump” project where I jot thoughts, plans, ideas, correspondence. Does have some photos in it but doesn’t seem a large project.
Normally the program runs quite snappy but in the last week is exhibiting the coloured wait wheel when typing ( a second or two - but enough to break your work flow). Im on a M1 MacBook pro.
Anyone else having odd behaviour this week ?