There is a 3 second lag when switching from the move tool to the text tool before the text tool even appears.

Also a 3 second lag after the text box is set when then trying to select the text before the cursor even appears so I can paste or even just type text.
and a 1 or 2 second lag before the text appears after I type it.

Note: The document I am working with is 44 pages with hand drawn art placed from TIF files in the background and has paragraph styles. I also do "Save as" when saving. Using typical display settings not overprint preview. No other programs open but Word and Acrobat.

So bad. Destroying my workflow.
Can you help me fix this issue? Or figure out why it's happening?
Any suggestions would help.

Already reset preferences. No change.
Tried starting with the IDML file. No change.

NOTE: This Issue does NOT occur in a brand new document.