Reply To: Long table slowing me down

Something very simple you may want to try: Open your file, and then do a “Save As” — this helps eliminate a lot of the cruft that builds up in a file over time, reduces the file size, and generally should speed things up a little. After that, you may be able to export to INX/IDML and re-import for an even cleaner file.

Another thing you may want to try is selecting the entire table and copying it to a new document, free of any of the other content from your catalog; once you've finished working on it there, copy it back into the proper catalog (or use InDesign's book feature to break the catalog into several INDD files, if possible.)