Bump!
Alright I bring more info this time. First I reinstalled back to 310, but it wasn’t what some would call a clean reinstall, so I shall do it again tomorrow. (I did not restart immediately after uninstalling but proceeded to install so, the issue remained)
First a video, on the left is the avi file, on the right is the same thing remuxed to mp4, notice the framerates.
https://www.youtube.com/watch?v=gG3NIiOLOPU&feature=youtu.be
Now what I noticed, the preview is only/mostly lagging on this type of avi which I recorded through msi afterburner (which I always use to record).
https://i.imgur.com/svDnj89.jpg
Could it be when I updated to 428, this specific avi started asking for some codec I do not have or something? I need to try and resolve this issue by weekend Q_Q
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