Hello there,
It's August 2019 AND have got Macbook Pro Early 2011 - 8,1 with following specs:
2.3 GHz 2nd Generation Core i5
4 GB 1333 MHz DDR3 RAM
Intel HD Graphics 3000 384 MB
312 GB HDD
Currently Running: OS Sierra
PROBLEMS:
Extremely SLOW PERFORMANCE w.r.t. boot-up time / app-launching...