Thank you Patrick and Elise. Unfortunately, I think our issue is unique. Everything is not just minor complaint slow, but is 'I can't do my job' slow. And this only started after this weekend. I've opened a support ticket with Infor and am working on providing them the necessary logs so that they can attempt to help

We're on the eastern one, pretty sure. And I should specify--we've been dealing with lag since the overall OS & H5 update. They have LOTS of little things they're working on fixing. There's a KB for that one, too, with a rough plan on when certain fixes are slated to be pushed. This maintenance, they fixed at least one memory leak, but agree that the H5 API script problem is the big one this time. Weird thing, we had scripts that were working fine before the fix, but are scrambling to fix  Read more...them today. If users are complaining about lag time doing normal system functions unrelated to customizations, I'd recommend having them clear cache and log in & out, just in case there's something gumming up the works after the maintenance. Show less...

Going off of John's comment - there is a "Known Customer Impact Issues" KB article that Infor updates to inform when there are new issues with M3 Cloud. There is a description for the H5 issue John mentioned in the KB article. Here's the link:

 Read more... https://customerportal.infor.com/csmcore?id=kb_article_view&sys_kb_id=704f68bd9300de10c2eeb9084dba1015 Show less...

I have heard reports of problems with H5 scripts not working. I don't know if it might be related to your issue.

Thank you Elise - this is good to know. We are in the North East, I wonder if it has to do with that server specifically. Do you know which server you are on?

We haven't had any complaints here yet (M3 multitenant cloud)