I have a mid 2012, I upgraded the ram to 10GB 4 years ago and replaced both the hdd and the cd reader by 2 ssd. This things flies for most tasks, I only see it

I have a mid 2012, I upgraded the ram to 10GB 4 years ago and replaced both the hdd and the cd reader by 2 ssd. This things flies for most tasks, I only see it slow down when I try compiling Android apps.