FrameMaker 2022 upgrade is agonizingly slow

Maybe the issue is how you access that server - you've got FM installed locally on your laptop; the FM files (& images) are all on the server & you're launching them inside FM. But are you using some VPN mechanism to access that server these days or are you in the office directly connected to your server through the LAN?

We've had a similar issue since we upgraded from FM2019 to FM2022. All our files (documents and images) are on the server and took a long time to load. When there was a page with multiple graphics, it is like FM is loading the images one at a time, refreshing the page after each one.  Fortunately, each our documents are 'mostly' self-containted within their own folders, so our solution is to copy the whole folder down to the local drive, work on it, then copy it back to the server. We're fortunate that only a single user work on the files at a time, so we don't have an issue with users overwriting each other's changes. Our solution might not work for you, but there is definitely something that changed in FM2022 from FM2019 in that it doesn't load the whole document (including graphics) into memory when the document first loads, but more like when each page is rendered. (I'm no expert, just my opinion and observation)

What point version of FM2022 are you running?

I've had such cases on some computers. In my case it was the Windows security/virus scan process (no 3rd party application, just Window's own tools) which permanently inspected files, e.g., when writing a PDF.  The solution was to add "FrameMaker.exe" to the exclusions from virus scanning in the Windows system/security settings. Without FrameMaker being permanently watched the speed on opening or writing files was back to normal immediately.

Here is a link to the posting I made back then: https://community.adobe.com/t5/framemaker-discussions/windows-defender-antivirus-real-time-protection-slows-down-acrobat-distiller/m-p/12157745#M71405

Bernd