Three things under user control that I am finding helps optimize Roon performance.
1) run on host that provides adequate headroom for CPU and memory
2) I use 2G wifi with extenders exclusively. I do not have MESH wifi but that is probably preferable. 4G may be better in some cases with no wall or other barriers where a strong connection can be made and retained. A strong reliable connection either way is key! Roon recommends a wired connection to core server for best results, but I have found over several years that wifi done right can work well if needed.
3) My PC running ROon core was running quite warm. I bought an external usb cooling fan ($14 on Amazon) and that seems to have helped the CPU (and hence also Roon) performance and reliability noticeably.
4) Run on a device that provides a system monitor and use it to monitor CPU, memory, disk and network performance. Any of these can bottleneck overall performance with any streaming application software, not just Roon, but Roon does a lot and may need more than many streaming apps. I have not observed memory leaks specifically being a problem with Roon core to-date but cannot say conclusively.
Roon also provided an update earlier this week that may or may not have helped as well.
I used PLEX a few years back prior to Roon. Squeeze system prior to that. PLex was much lighter weight and not as resource intensive, but Roon blew it away at least at CD resolution in regards to sound quality. Plus I use DSP regularly as needed to tweak the sound based on room acoustics and to some degree personal preference. THose who use Roon but are afraid of using the DSP are missing out on the ultimate tweak and are way more likely to stay on the hifi gear merry go round for the long term and at great cost.
I still buy new gear, but increasingly it is just to try different things, not because I expect any major improvements in sound quality. It is already the best I have ever had and competitive with what I hear at shows, but costs way less than most.
Good things do not always come easily!



