The latency is not really related to (processing) power. It’s simply not possible to avoid buffering of samples, and the latency it result in, when audio samples is passed to a processor. In a system with more CPU cores processing power can be increased if it’s possible to process audio in parallel but that’s not the typical way we use our QC. Instead everything is processed in series and if a preset needs to use a second core added latency will be a result of that.
Latency caused by buffering can be reduced by raising the sample rate and/or reducing the buffer size. Both will put more strain on the CPU. I’m not seeing a massive surplus of processing power with the current sample rate and buffer size, so I think Neural DSP has reached a reasonably compromise between processing power and sample rate / buffer size.
I’m not saying that latency in the QC can’t be any lower than it is, but I will be surprised if it’s possible to lower it significantly.