Same is true many have trouble seeing benefits of having cpu cores above 4 in gaming. Due to many games themselves are not optimized for it.
But as @Douglaster posted taking control & prioritizing processes to specific threads can & does improve performance as well. Otherwise why not just grab a high frequency ipc i3 & save large on a cpu.
Especially in VR where things like Headset drivers & such can make use of extra cores outside of game engine.