Recently, I upgraded my mac to high sierra and in contrast to other gradations, this time , mac served quite better and it felt like more faster than previous times. but, as I have turned on the auto-update option in the app store, the automatic updating brought 10.13.2 update which I installed perhaps unknowingly , specially about its outcome.
I don't know why, whether due to this update or any other reason, my mac started being slower, as if hang, and to quit any app it took more than five minutes, while turning the computer, it was ok and slowly the speed was too down that it was frustrating and I had to force shutdown by pressing power key for long. Voiceover became dumb and nothing worked, no apps could opened , only Alex pronounced 'busy' and nothing and most often voiceover was silent and while I showed to sighted ones, again the laptop didn't function and was busy and slow.
Finally, I formatted my mac taking it to my local store and now its ok, but the appstore is again showing the update and is asking me to allow reboot to install that update.
Please guide me for it, its really disturbing in my academic and internet professional and even in my daily life. At the moment, mac works well and should I need to cancel that update forever or the slowness is not due to the update?