Where am I going wrong?

I have owned my Pop 3 for while and struggled to get decent scans, I don’t know where I am going wrong.

I either get “lumpy” looking scans, the scanner loses tracking very easily despite being on the tripod and using the turntable, I find that the software is lagging on my computer too.

I then have to use Autodesk mesh mixer to try and get the scans processed. I use Inventor for the drawing work (I have a license for work). I don’t know if this is the right software for working with scans either?

Any advice or suggestions on what I can do to improve my scans and how to use the scans once etc.

This was a scan I made last night and struggled to get this done.