Hi Diego,
NNERuntimeORTCpu is configured in a way that it uses as many threads as it needs in the editor but runs single threaded in standalone to give more control over CPU budgeting.
So in your case, your model can probably be parallelized to 4 threads, so it runs 4x faster in editor (but using 4 cores instead of one!).
If you are fine with NNERuntimeORTCpu using as many cores as it can get in standalone, you can change the behaviour in the plugin settings.
Just go to your project settings, plugins and NNERuntimeORT and match the settings of standalone to what is there in Editor.
Please note: there is a slight overhead when using multiple threads due to thread pool operations.
So going for multithreaded really just only decreases your latency, the overall compute time is at least as high as in single threaded mode.
I hope that helps!
Best
Nico