Oscilloscope Music On Portable Digital Model

I recently borrowed an handheld digital oscilloscope to diagnose issues with a non functioning VIC20 (which was successful) but as it's a 2 channel model I thought I'd try it with some oscilloscope music. While the results are nowhere near the standard of a high quality analogue scope the results aren't actually that bad, as you see here!

Recorded from my OnePlus 8 phone.

This is how it should look. Download links to the high quality wavs are available from this video description too: https://www.youtube.com/watch?v=OP7sTQQ0Blw