VMP3 tends to be slow packing then VMP2.x (and it does not have a Fast-Packing option).
I have to disable this function because the protected DLL needs to be loaded/unloaded multiple times.
Unpacked DLL size = 20M and Packed DLL size = 5M
If the speed is of importance and file size is less important, I would suggest turning this feature off in VMP3.