in general, the total time of processing depends mainly on quantity and quality of data inputs, as well as their mutual overlap, and your hardware performance.
However, the reconstruction in normal detail is usually faster than in high detail, that is right. Keeping the cache also saves a lot of time.
Use Preview quality reconstruction but with changes to the settings:
Mesh calculations - Use sparse point cloud FALSE and Maximal vertices count 500,000 or 1,000,000
That will give you a quite decent result within a rather short time.
It may actually be good enough for your needs. You’ll have to try.
I use it for turntable scans most of the time and it does save me a lot of time. The result will not have all the very fine details but the texture more than makes up for that.
