PixelExperience for spes (Redmi Note 11) had the same issue a few builds back, they pinpointed it to an issue with Android System Intelligence. I wonder if it is the same for starlte?Unfortunately, battery drains so fast and makes heat. But this is because so much Google apps run on the background by default, unlike Lineage.. S9+, put the battery capacity together with this reasonable CPU, and a ROM of =>2GB running on this platform containing everything Google in your RAM = relatively high workload = heat and battery drain ... To me it's no wonder and do not blame the creator of this build. Maybe it can be downclocked a little bit. Because heat definately affects the lifetime of your phone and it's going crazy if you start to debloat.
Beside that, ROM works fine and feels responsive.
I shouldn't try it
It is, as far as I can remember, but don't know where anymore. Do you want to exhaust your battery?