Yeah I upgraded with a SSD and went from 2gb to 4gb RAM (I'm not sure if using 2+4gb = 6gb would make a positive difference?!)
what do you mean with 2gh? Should I overclock?
So Mojave will work fine? Because I tried Catalina.. work ok for browsing but OneDrive, MS Office is really slow..
6 or 8GB is best. The point is - Mojave is useful at any clock speed. Please notice the last two entries in the sig.