Loss of sysex messages

[aa15aa15]

Hello,
I'm new to this forum.
My problem: An electronic organ program connected to an application I'm developing. The data exchange is carried out by sysex messages at high speed (many messages in a short amount of time). Everything works well when the two programs are connected using hardware device (Midi-Sport). When I use CopperLan (which would be my goal), a get a random loss of messages: rarely entire, often 10 to 20% of lost messages.
I use the virtual MIDI cable connection. 1 to 4. 2 to 3.
Any idea?
Thank you for your help & best regards

[CopperPhil]

Hi,

Sysex transport was heavily tested last year between a computer and an Alyseum AL-88, simultaneous sysex dump on each port... we didn't got any other feedback from then.

Can you provide me with a test software generating sysex as needed (amount, speed)? My email is pca@copperlan.org

Thanks