It doesn't right away (after a fresh reboot) but it fails eventually, as Kodi is my heaviest app, it could be due to my skin, but man, some ppl say Stremio is ugly, but Kodi with stock addon is way uglier that is not even pleasen to use, my skins aren't the heaviest, Arctic Horizon 2 and Fuse.
It also could be because the Shield TV is my secondary Plex Server and that would bring some background load (even when it is not serving media), but I have done tests with and without this, same for the PlexKodiConnect addon.