Kinda sorta. Yes the MS applications are more powerful, but the collaboration tools still are not as real-time as Google. My work was forced to switch from Google to MS, so I have years of experience with both. People often have to reopen files to see other people’s edits or there’s a huge lag that we never had with Google. We’re in SF, CA with a fast fiber connection. There’s also not exact parity between the desktop versions and the web versions of the applications. It’s easy to start to try to do something only to discover that, for instance, you can’t group objects in web PPT. Granted, with Google, while it’s pretty much always the same experience, but there are the long tail features which are missing.
My experience has been with Excel and it wasn't all that slow, but I have not used it extensively as you have. I am over in Maitland, FL not sure what our speed is tbh.