I fear I will probably not become your hero. My rough guess is that the pedals should be able to track maybe 100 messages per second. Even this is probably pretty excessive in terms of how it would sound. Note that your 765 CC/sec is most of the MIDI bandwidth (31250/10/2 = 1562), so not many things could either send it or receive that rate.
Maybe what I should do is generate a MIDI CC sawtooth and see at what speed it fails to track it. But, I'm not totally convinced that this is the problem – that is why I hope for a pedal that is known to cause issues. For example, maybe the messages are too close together, or something.