Apparently our forum rules were not fully clear to you. Let me reiterate those rules that are most applicable at the moment:
- Discussions regarding the piracy or theft of copyrighted materials will not be tolerated
- Forum staff and users will refuse support to other users who have piracy add-ons installed
- LibreELEC references the Kodi team list of piracy repositories and add-ons
So, you can either come back to use with a fully clean setup of Kodi if the stutter problem is still present, or you can find your support elsewhere. Presumably at the location that you downloaded your add-ons from. For now, support to you simply stops right here.