Hi kd175 , thanks for these comments. I see you meant that your file is local, sorry about that.
I don't think 6GB is enough for Parallels. I would increase it to 8GB immediately, then test the result. Also try with 10GB, unless you have heavy-duty Mac apps that have to run at the same time. I had mine set to 12GB, but then I wasn't using the Mac for anything else significant. Parallel's help topic is here: Improve virtual machine performance on Mac
Is your data file actually on a local drive, or is it in your iCloud drive (which is in the cloud, n'est-ce pas?). I would make sure it's on a local drive.
Do you have time machine or any other back-up software running continuously? Try excluding the AccountRight program folder. This used to be a key step to improve AccountRight's performance in Windows.
https://community.myob.com/discussions/accounting_software_general/converted-to-accountright-plus-for-use-on-a-mac-/906388/replies/906460
