Would you be so kind and install jv16 PowerTools 2017 build 1666 again, run Clean and SpeedUp My Computer once, then archive as ZIP and send me the link to download it via a forum private message?
I would like to learn what is going on at your side and the reason why jv16 PoweTools 2017 performs its scan operation so slowly in that environment.
This could help both you and other users as well, considering that jv16 PowerTools X is not a viable solution anymore, considering the much improved accuracy and safety mechanisms now implemented into jv16 PowerTools 2017. Sure, jv16 PowerTools X is a good product, but jv16 PowerTools 2017 is better in every way and if it performs strangely in a certain environment such as yours, then we should learn why and solve whatever is causing this.