Until VDPAU hardware decoding comes along in MLT, Kdenlive relies on multi-threading decoding of AVCHD streams.
I would be interested in someone testing AVCHD raw files using a quad-core computer.
We will display the result in our hardware requirements. If AVCHD is not at hand, we will remove AVCHD support from Kdenlive supported formats.
Does it display in slow motion or not?
What is the %percentage of total processor used?
Also, note I added this issue: