Avg very slow updating
• Experiment with the options in Excel to “disable hardware graphics acceleration”, and “ignore other applications that use Dynamic Data Exchange.” They don’t seem to make a difference for most people with this problem but you never know. One person thought the problem reappeared after running Edge for the first time, as if the web browser had somehow affected Excel.There’s only one solution that has consistently worked for some people. You may be able to fix the slow Excel problem by turning off Cortana.
I’ve experimented with all the other possible fixes in the last year and nothing has made any difference.
At first I thought it only happened when I was clicking on files stored on a network shared folder instead of my local hard drive, as suggested in a few forum posts.