You even have the same CPU as me. Seriously if you are using RT kernels anymore.. I don`t know, that just seems way overkill for normal audio. Usually you won`t need latencies below 5ms. If your speakers are a bit far away, you can always try to lower it. The thing is though, if you have fine granularity multitasking, everything runs smooth. And is responsive. Even without RT threads, 0.33 ms worked, not as good as with RT threads, but quite good. Meaning that the whole system is very smooth now. So yes, common applications should run very smoothly, but you do need the config for doing that. General idea of my config is to avoid components that do uneccesary things for me. So that I avoid stalls, that prevent low latencies. That could be memory compaction or similar things. Or I can`t really remember all the stuff I tweaked in the end. It was running smoothly and greatly though, and I remember thinking Linux has reached that stage. Kind of a dream for many computer enthusiasts to have a system that performs that well. Forget about your vintage computing systems, and all the cries of them being more responsive. Now you have a modern system, that has the benefits of both responsiveness, and highlevel programming.