I am not sure what we should improve with regards to this problem ?
We have nothing to do with the windows 10 thing, I don't even know if they use dosbox or not. If they do, they didn't tell us. If they have problems getting it to run smooth, then that it is really their problem.

With regards to GOG. I have informed them about the delays and given them the formula to calculate them.

As you found out. DOSBox with its default settings has no delay that is noticeable to you. So what is there to do for us ? We can't change the settings they use. We can't start interpreting the settings differently either. As what if somebody really wants those settings ? We can't cheat and say if settings are A do secretly B.

I got your messages too, I'll take a look at them over the next few days or so.