Recently I’ve gave up Windows for Linux and installed Ubuntu with KDE Plasma desktop on my pc and laptop from 2007. It’s an i7 Intel processor with 8gb ddr ram so I thought it would be fine, but it seems quite sluggish. What distro could I use that would be faster and still fully functional? Thanks for your help in advance.
Is it a Core i7 or a Core 2 series processor? 2007 would suggest the latter, and I would absolutely argue for either that you really should prefer something with Xfce or a similar lightweight desktop (maybe Cinnamon or MATE).
I’d probably recommend Linux Mint as a lightweight user-friendly distro, and I’d suggest any of the three available variants based on what you like the most aesthetically.
Additionally, if you haven’t opened them up for a while, pick up an inexpensive SSD for both of them if they don’t have them already. Modern OSes really expect an SSD over a spinning disk as the boot drive.
I misremembered the specs it’s actually i7-2630m, which indicates that I thought I got the laptop later than I thought. I’ve ordered a ssd so hopefully that will improve the speed.