@ben79 As per AEM cloud Dev environments are not an auto scalable
environment. That could be the reason that you are experiencing
slowness, ideally in Stage and PROD environments you will not face the
slowness as those are auto scalable environments, And also as part of
moving assets in cloud I recommend to use renovator ACS AEM commons tool
please look at the below link
https://adobe-consulting-services.github.io/acs-aem-commons/features/mcp-tools/renovator/index.html
And if you want to monitor...