Thanks for the feedback, kitz & thank you also for all the testing time you put in until we arrived at what now appears to a stable version.
Can I ask, are you running the programs in tandem with DSLStats?
I think that if anything was 'wrong', it would have shown by now.
So, you may as well send the logs & stats over.
I'm particularly keen to look for any differences in program operation when your fast PC is otherwise idle (i.e. when nothing else is running to slow it down at all), so it would be most helpful if you could also list some of those times for me to focus on.
I have a version ready, subject to what the logs show, that has the option to turn off the extra debugging information.
Turning this (& extensive event logging) off certainly speeds up processing time at my end, so it might be the case that the MEDIUM PC speed setting is then insufficient for your PC & you may then need to select the FAST PC speed setting.