SDR doesn't work in CS:GO. You can use the built in demo renderer or SrcDemo2 but I've always just recorded demos with ShadowPlay at host_timescale 0.25 and sped it up with frame blending in my editing software (example here: https://www.youtube.com/watch?v=OhFlsoEjlfg )
Demos are really quirky in CS:GO. You basically have to record in a server that iss on a casual/classic gamemode (ie. settings that aren't ever present in standard surf servers - I had a server owner friend help me out with getting working demos) and be recording from before the round and end the recording by disconnecting/ending the round. I'd guess that SourceTV auto record demos also work but I've never used them in CS:GO.
What Editing software do you use? I want my videos to look like that example!
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