Hi man, i have the same MBP, with 8GB Ram, in this case you gonna try the Catalina's path to make a usb boot driver w/ this mod.
But on my case the battery worked less than 2 hours and system do not run faster like High Sierra and CPU Fan cooler running up 4000 rpm making a lot of noise.
Now i am using Linux Fedora 32 to work with MSCode to Python R. and C#
the Battery working a lil' bit good than on macOs Catalina and CPU fan noise less
http://dosdude1.com/catalina/