x265 apparent performance drop FIX - staxrip/staxrip GitHub Wiki

If you have recently updated Staxrip and noticed that there is a significant decrease in the performance of x265 encoder, then here is the explanation and the fix:

Explanation

Default settings of x265 have been changed, which could lead x265 to make unnecessary calculation loops, resulting in taking more time.

Fix

You need to check the Command Line that is generated in x265 options. If you see "--rskip 0" among the parameters then this is the cause of the degraded performance. You'll need to remove it, by setting its value to 1 instead of 0.

You can remove it in x265 options > Analysis > Recursion Skip => set to 1-

You'll need to update your templates with this modification, or if you use Staxrip default templates, simply delete the settings folder and Staxrip will re-create it with new fresh ones.