I'm doing the initial testing of my RPi4 using a BENQ monitor since it was to disruptive using the TV (Panasonic) and it was looking worth checking out on the TV so moved it and connected everything up.
I wanted to compare the picture quality with what I get from the RPi3 running LE9.2.8. If I didn't have that as a comparison I'd probably be happy with the RPi4. I used "Looper" to test with. About 2:30 in there's a bit where a tractor is pulling a large yellow trailer along a dirt road. On the RPi3 (or my PC using VLC) its nice and smooth. With the RPi4 its a little jerky. Its not enough to stop me watching but it is enough for my brain to think something's wrong. I've tried turning off deinterlacing with no discernible difference.
Is there another setting I should be trying or do I need to bite the bullet and buy different equipment?