Has the Optane software been removed, or just updated so it no longer triggers the error message but may still be causing high CPU usage? It was the cause of high CPU usage for other people, so it's worth making sure you've tested that the problem happens with the Optane software removed.
If the issue no longer seems related to the Optane software, you'll need to work out the cause. It is not likely to be caused by Opus itself, as we have no similar reports. So a new version of Opus isn't likely to fix it.
The guides I linked above are the best places to start for tracking down the cause:
Start by seeing if the problem only happens when you open certain folders, or folders containing certain files or file types. That is often a quick way to narrow down the potential causes to a few pieces of software which handle those files.
You can also create process snapshots and send them to us, which can sometimes reveal which DLLs or actions are causing the CPU load: