Playback randomly skipping on specific videos AND solution

I recently noticed some files randomly skipped when played with MPC since I installed SVP. It happened very often (usually about 4-5 times per minute) making movies unwatchable.
If the performance graphs were opened it looked like this:

What's interesting is that SVP had nothing to do with this problem, as I tried the same video with SVP disabled and the problem persisted, yet it was still reflected in the graph for reasons unknown to me:

After days of trying every setting looking what could be the cause, I found a common factor. Surround (5.1) audio. I was using headphones, so the audio had to be downmixed to stereo, and somewhere in that process the video got jumpy.
It would seem that by default, the "System default" audio renderer selected in MPC was doing the downmixing, so I had to find an alternative. The solution I came up with was:
First, I changed the Renderer to my audio card:

Then I went to the External Filters option, clicked "Add Filter..." and selected AC3Filter

Then, double click it on the External Filters list, go to the System tab and configure it to be preferred over other decoders

Then, close the AC3 panel, the Options menu and MPC, then launch a video with 5.1 audio. All that's left is to go again to the AC3 config and set its Output format to Stereo (this can be done in the previous step though ).

While I was on it, I set it to decode at the highest audio quality (rate & format) my audio card can process. Done! 5.1 to stereo without jumpyness!
Please note that the highest quality for different audio cards vary, and integrated motherboard audio cards are overall less powerful. Be careful when configuring this and mostly, don't do it while playing a file, even less at high volume!

Hopefully this can be of some help to someone. It is certainly better than a dummy post saying "my video skips and I'm not giving any technical info i want a fix help me plz"

P.S.: I keep getting the feeling I forgot a detail in the instructions. If someone spots it, do tell me please.