I need a bit more information before I can tell you what could be causing this. What is the exact version of the 6.X series you are using? And would you mind sharing the code and a sample image you are using so I can try to reproduce this?
I have no idea how much extra the overhead of using a .NET library is. I think it is safe to assume that using the C library will increase the performance but it have no idea if that will be milliseconds or nanoseconds. It might not be worth it because you will have to be doing your own memory management.
I have no idea how much extra the overhead of using a .NET library is. I think it is safe to assume that using the C library will increase the performance but it have no idea if that will be milliseconds or nanoseconds. It might not be worth it because you will have to be doing your own memory management.