Performance of computers are often limited by their hard drive performance, and if you’ve ever upgraded from a mechanical hard drive to a SSD, you’ll be fully aware of the massive boost achieved by that upgrade. Many laptops come with a hard drive and a DVD drive, and if you’re not using the DVD drive that much or at all, you could purchase an ultra cheap optical drive caddy adapter to install an SSD into your laptop, or just another 2.5″ hard drive if you need extra storage.
You’ll need to insert the SSD into the caddy, and replace the CD/DVD drive by the caddy. I’ve been informed of this trick via a link on eBay taht’s for an optical caddy adapter specifically for Lenovo IdeaPad Z50-70 B50-30, but if you search for “hdd optical caddy” you’ll find several “universal” optical caddy adapter for HDD and SSD with 12.7mm or 9.5mm thickness which cost around $5. These appear to be fairly popular, and can also be found on Amazon US, Aliexpress, and any other shops. Most reviews on Amazon are positive as it fitted and worked, but a few got less lucky as it did not fit into their laptop.