Chinese knock off sound board

[Beetlemankurt]

Hi all, new here and have a question for you. I bought one of these boards and put it in my Tamiya Scania which for all intents and purposes, works well. I set it up as per the standard instructions and have my truck running with a Spektrum DX6 transmitter.

My question is, can you adjust the matching of the revs to the position of the throttle stick somehow? As it is, it sounds good but I’d kinda like it to rev higher earlier in the throttle stick position....

Sorry if this is a bit of a newb question. I look forward to your guidance.

Thanks very much
Kurt