So i already have This usb-c hub on my chromecast with Google tv, and while the one random 16gb usb stick works fine in terms that I can install apps on to it and get bit of a breathing space in terms of storage with it.
The system has gotten bit slower since then and for example sometimes when I'm in the system settings, the settings app freezes and then throws me back to the launcher.
And also if i go to the more apps (apps that didn't fit in the my apps list) or if I open the sideload launcher. Then it takes 5-10 seconds for all of the app icons to appear, when previously it used to be instant.
So i would like to know if there is faster storage options than this random 16gb Kingston dt50 that would be better fit for gccwgtv.
This may not be the case of your slow response and issues, but after having external storage on my CCwGTV for several months with issues, albeit minor, I bit the bullet and reset the device. My fresh install, this time with the external storage in use from the beginning, has so far been without any issues. Perhaps it's worth a try?