A better way to enable GCam on MIUI 12 ,Android Q for Mi 8 Lite? - Xiaomi Mi 8 Lite Questions & Answers

[I'm not very knowledgeable about this area. I will try to give a reply if you need more detailed information. ]
I am using the latest version of stable MIUI 12, Android 10.
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I have already flashed TWRP, rooted, and used a Magisk module to enable Camera2 api (in Android 10, simply editing build.prop does not work.The module's zip file is also form XDA but is lost, and I can see it replaces /system/lib[64]/libcameraservices.so and two files in /system/vender/lib). But there are 2 things that seem not very satisfying.
① The module uses system.prop to change build.prop, but it doesn't work.
I wonder whether the cause is a small bug of the module or the limitation of MIUI. Then I have to manually reboot to recovery and replace the file each time I disable or enable the module.
② When enabling the module, Google Camera do works, including HDR+ and night sight, but MIUI Camera and system face recognition stop working. In some "informal" uses such as WeChat Scanning QRCode, it will show a black screen, which is very inconvenient. Is there an approach or an improved module to both use the original Camera and Google Camera?
XDA is the forum I have the most hope. Please have a glance at my descriptions and give any opinions if you like!