Use it at your own risk! It is unknown if it causes any damage to the screen yet. I'm currently testing it for a month now, no issues yet. It should work in any MIUI or non MIUI based ROMs (Don't flash it on any Q ROMs, it is reported that it will bootloop!).
-Download the attached dbto.img, Lanthanum System Toolbox.apk file, install the apk, then open it
-Select partition settings from the hamburger menu
-Select dtbo, make a backup of it (Export image)
-Select dtbo again, click flash image, and choose the dtbo.img file
-Reboot
You should see the changes immediately after the restart. It's way smoother than before.
If you want to go back to default, flash your backed up dtbo image file.
Source: https://www.miui.com/thread-2493430-1-1.html
-Download the attached dbto.img, Lanthanum System Toolbox.apk file, install the apk, then open it
-Select partition settings from the hamburger menu
-Select dtbo, make a backup of it (Export image)
-Select dtbo again, click flash image, and choose the dtbo.img file
-Reboot
You should see the changes immediately after the restart. It's way smoother than before.
If you want to go back to default, flash your backed up dtbo image file.

Source: https://www.miui.com/thread-2493430-1-1.html
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