Upgrade to business class

My mentor, Hanulli, was complaining about her laptop becoming so slow, after only 2.5 years. From what I could see (I am software, not hardware) it looked like an upgrade with more RAM could help.
I ordered two new stacks, doubling memory size and they were delivered today (wow, fast). Then came the major challenge: unscrewing the back of the laptop. Oh man, are those screws tiny. Again I had to use my reading glasses.
But after closing the laptop case again, it was as if Hanulli was upgraded to the business class. The laptop was much faster.