Well, I'm not denying that, I'm exactly in that situation for my laptop: 2007 thinkpad x61, core 2 duo T7100, but with 4GB of RAM and an SSD, to be fair I'm ch

Well, I'm not denying that, I'm exactly in that situation for my laptop: 2007 thinkpad x61, core 2 duo T7100, but with 4GB of RAM and an SSD, to be fair I'm cheating a little as I use Debian+DWM which is lighter than Windows 10. But it holds itself pretty well and CPU limitation will probably not be the reason I change it. The screen resolution (1024x768) will probably be the main motivator. But this only illustrates that there were some improvement because of RAM evoluation (4 to 8 GB or RAM now for average PCs vs 1 to 2 GB back then) and huge improvement because of disk evolution (SSD vs mechanical drives). CPU is far from being the main improvement factor for common usage in the last 10 years.