Macbook extremely slow all of a sudden!
My battery all of a sudden does not keep, so the macbook goes off as soon as the power is adaptor is removed. All of a sudden the whole computer, applications start-up and processing of anything in any application is extremely slow. I am posting an Etrecheck description at additional text option, which states a major problem. PLEASE can anyone assist. I live in Namibia, Africa
where no apple care is available, not good apple service.
MacBook Pro 15″, macOS 11.1