Anders_ASUSThe .73 update solved it for me, even with OTA. I think a lot of people haven't installed it yet because it doesn't alerts you when there is an available update (at least for me). The ram management is still more aggressive at closing background apps than Android 9 though.
I read some comment from users that had success in fixing their system lag without a reset by downloading the full FW from our homepage and install that one instead of updating via our incremental FOTA which is maybe 300mb vs the full FW which is 1.9Gb.
I have no idea if this really works but it's worth a try. So if you experience lag, next time we release a new FW, don't install it via FOTA. Instead download it from our homepage. This will overwrite more system files than if you upgrade via FOTA which in theory could fix your lag issue.
Please feedback here if it works or not