Allocado: Misc features + More generics for more perf (Part 2)

Here we're polishing up Allocado, adding a bunch of features and generics to increase the performance for specific use cases.

[@humansaremortal3803]

what the hell is ALLOCADO?

[@GFM631]

The audio seems out of sync

[@gamozolabs]

It'll do that, that's OBSes or my capture card drivers fault.