Catalina performance issues on MacBook Air 2013; reversion possible?
I have just updated from High Sierra (10.13.1) to Catalina (10.15.3) and am experiencing multiple issues. Simply saving web pages to PDF on Chrome and Safari takes minutes; the Finder stalls while displaying "loading" messages; my battery is being depleted even faster than before; and my fan is on overdrive. Even faithful TextEdit has lag.
This is an addition to the fact that various apps are not supported, beyond those that the Catalina installer informed me wouldn't function after the upgrade. Some cannot be updated and are important for my work.
Is it possible to uninstall Catalina and revert to a previous version of OS X? Which version would be best for my needs?
The apps which are unsupported include ...
- MS Word 2011
- MS Word 2016 (I have downloaded but not installed an update from here: https://docs.microsoft.com/en-us/officeupdates/release-notes-office-2016-mac)
- MS Excel 2016
- MS Outlook 2016
- Junos Pulse 5.1
- ABBYY FineReader Express 8.3
- Adobe Digital Editions 2.0
- Audio Notetaker
- Combine PDFs
- DSS Player
- Papers2 2.8.1
Any advice much appreciated,
Thanks.
MacBook Air 13", macOS 10.13