We upgraded to openwrt 22.03, and while it made the router a lot more possible, the AR750S would be very slow to run these features, which is like your computer from 10 years ago running the latest windows11, and we chose to put these features in the software repository for people who needed them to install it.
Of course, it was a wrong decision to push the firmware, and we did not consider the users who turned on the automatic upgrade function.