Panasonic P81 (Clone of Coolpad 7320) Cyanogen Custom ROM

I own a Panasonic P81 phone which I rooted and I have installed custom MiUi 4.12.5 v5-6 ROM. After installing I realized that my phone heats up a lot and multi-tasking is no more possible. Available RAM has decreased and now I have even lost superuser rights. I tried finding cyanogen for my device but was unsuccessful. I wished some developer could breach into the existing versions of cyanogenmod and make them compatible to my phone somehow. Or maybe help me out with the existing issues on my phone. I am obsessed with customizability and wish to run the phone perfectly normal. Language in the settings irritate me at times for some features. English needs to be there everywhere.
Please help me out, developers!