MIDI BUG!!

Octamed has a bug in it's Midi capabilities. I have reported this to RBF Software at least two times, but never got any respons. The problem is that if you use several channels, and the first line of a block has a lot of notes each containing some command that controls the voice, then Octamed slows down for some microseconds!! It's very annoying. I am a looong time Octamed user and this bug has been present from the Amiga age to this day. It's still in the v1.4 version! On the Amiga I always used free versions that came with Amiga mags. I want to use Octamed on the PC, and I've tried all the trial versions now, but I dont want to bye the program if the bug is there!! I tried the same thing with Cubase at a studio in my home town and no problems! Please fix this problem!! It's really a baaaad bug and midi music cant be made professionally until it's fixed!! I have three different synthesizers hooked up to my computer and I have a USB MIDISPORT 8x8 midi connector. But the hardware makes no difference, the same problem was present in the Amiga version.
Check out my music at http://www.surfnet.fi/danimusa
All those tracks are made on my Amiga using Octamed Soundstudio!