I’ve just now noticed something that goes back to at least 3.70, but I can say for sure was not an issue several months ago. Incoming data from socketcan inside of node red is somewhat slow. If a value is updating rapidly, what comes in on socketcan now is slow and laggy compared to smooth continuous data from several months ago. CPU load looks good. I have confirmed this on multiple systems. Sorry I can’t be more specific about which version this changed.