If I remember correctly --amp can slow down by 20% at least for me. So, maybe it depends of the source. What you want to encode? If you are interested, I can show all my settings based my tests for 1080p and 4k hrd.
It took a long time, but I'm happy with the result.
Ps: I'm pretty sure that for now (version 3.2) --no-rskip used only preset placebo, so I don't really understand why your Slower use it.
Last edited by redbtn; 13th October 2019 at 22:56.
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