It is normal to have a computer that lasts 5 years.
My GF had the same issue with her (back then) 4 years old laptop (slowdowns + battery issues), so that's what I did:
- bought an SSD (she had a HDD) and clone her Windows into the SSD
- double the RAM (she had 4GB, bought 4GB more so she have now 8GB)
- buy a new battery
Now it's faster than ever, and she loves open 255 tabs at the same time and keeping them open for weeks, so that's a huge relief for her computer
"Quagmire, are you the type of guy who takes 'no' for an answer ?"
"My lawyer doesn't allow me to answer that question"
PSN ID: skmblake | Feel free to add me