https://9to5google.com/2018/01/02/psa-google-pixel-2-users-lag-sideload-jan-sec-update-fix/
Update: Googl
e has confirmed that sideloading the January security patch results in these lag issues. However, those who update via the OTA should not encounter the problem.
Of note, the Functional updates section of January’s Pixel / Nexus Security Bulletin notes a fix to “Improve stability and performance after installing an OTA.” This is so far not the case.
仲諗住sideload 入去tim, 唯有等ota