InDesign so slow to respond...

How often are you doing Save As with a new name? 

If you don't - your files will get bigger and slower because to speed things up, InDesign is saving Undo history at the end of the file. 

Unfortunately, this Undo history is unaccessible when you close your file - but remains as part of the file, making it bigger and slower. 

So the 1st step would be for you to do Save As with a new name - never ever overwrite your original file. 

Then, just in case, you can do IDMLing as well - export your INDD file as IDML, then open this IDML file and save it - again - with a new name, so you won't overwrite your original file.

IDMLing is a "housekeeping" - completely rewrites the file, re-generates previews and gets rid of all the gremlins - usually. 

IDMLing is for emergencies, when your file starts to misbehave - you can't edit an object or text, access particular page, can't export PDF, etc. 

Save As with a new name you should do at least once a day. 

Hi @Todd_Morgan ,

Sorry to hear about the trouble. Please try the suggestions shared here and if it still doesn't work, please share the version of InDesign & OS. Also, confirm if is it slow on a specific file or multiple files. 

Thanks

Rishabh