We have enabled TorchSharp to run on .NET Framework. We noticed a performance degradation comparing when running against Net Core. One obvious place to look at is the pinvoke calls cost. measuring simple pinvoke seeing the numbers:

|      Method      |     Mean      |    Error   |   StdDev   |  
| NetCore5OPInvoke |      4.371 ns |  0.0107 ns |  0.0095 ns |  
| NetFxPInvoke     |      7.885 ns |  0.0333 ns |  0.0295 ns | 

Need to look in general on the full stack to find out if there is any opportunity for optimization.