Hi @WJB and welcome to the Manjaro community.
This link concerns Cinnamon on Linux Mint, though it should nonetheless be applicable to recent Cinnamon versions with Manjaro:
- Disable animations: Cinnamon Desktop (itsfoss.com)
A comment here from the Linux Mint Forums suggests:
Being that this post is from 2014 I’m uncertain how relevant it might be today.
As a new forum user, please take some time to familiarise yourself with Forum requirements; in particular, the many ways to use the forum to your benefit:
The Update Announcements should be checked frequently for important update related information.
These announcements contain a Known Issues and Solutions section and should generally be checked before posting a request for support.
Output of the following command may generally be useful for those wishing to help:
inxi --admin --verbosity=8 --filter --no-host --width
Be prepared to provide more information and outputs from other commands when asked.
Regards.