Numbering causing slow document

Hi everyone,

I have a document which is running incredibly slow. I believe this is something to do with the numbering i have set up as turning it off solves the problem.

I am using three different lists for document numbering, figure numbering and table numbering.

The document numbering seems to works fine, however the figure numbering looks like its trying to constantly update because text frames with that style applied are constantly flashing.

Does anyone have any ideas why this might be happening?

I have another document I did a long time ago using a similar numbering system which is working perfectly fine.

Thanks,

Ian