Nice stuff. Is that mostly Kontakt libraries? If you're getting those clicks and pops, you can always bounce some of the more intense tracks to audio (which is pretty good practice for larger projects as it is) and then OBS won't stutter so much. Honestly, I tend to bounce everything on the fly if I'm happy with it, but everyone's got their own style.
With that said, my videos are usually riddled with the same exact sounds of my computer struggling to keep up. I really like the music, for what it's worth!