I hope you won't think less of me, but I've found Win 10 pretty stable and headache free. I'm running it on both a pretty decent gaming box and a mainstream midrange laptop and have had no issues with driver updates or instability at all. Granted, anything is better than Win 8 (I only toyed with it, and after a very short time decided Win 7 it was until something decent came out) but I can't knock the OS. I've also not noticed any performance hits associated with it so long as my video drivers remain current, and no headaches on general use, including some less stressful gaming but occasionally some demanding photo work on the laptop. Granted, SSDs in both, and of all the hardware choices that can improve performance and user experience, I still find an SSD more important than a CPU that's "12% faster". With Win 10 it's almost like "instant on" from hitting the power button.
I don’t think less of anyone, just not appreciative toward name calling.
Win 10 is not perfect, but as I eluded above, neither are other OS’s which includes past versions of Windows. I’ve enjoyed rock solid stability for the past 4+ years with all my Windows 10 machines. Not a single issue. There is the odd process crash, but just restarting the process is all that was needed. No need to reboot. Drivers are maintained, which is an effort with Windows but that is the Windows echo system and has been since the introduction of Windows. Once my GPU drivers were not up to date after a Windows update which resorted to a lower screen resolution, but a new install of the revised drivers was all that was needed to correct. Other than that, not a single update issue.
Also own a low powered and spec Win 10 tablet (or phablet as they are referred), no issues with performance. Not playing the latest version of Call Of Duty on it, or attempting to fold proteins, but for it’s intended purpose it works very well.
A computer can only be as fast as it’s slowest component, which is usually the storage medium. Agree there can be huge gains from upgrading to a faster storage medium such as an SSD, but even they have their points of diminishing returns. All depends on what the computer is being used for.