Right you are. I will take your word for it all since you seem to know a lot.
Just reporting my experiences. I love my Mac from the moment I turn it on, unlike the hours and hours I spent trying to nail down viruses on my PC.
I am adding more memory in a couple of days, however, since it is getting slow with more stuff that I have downloaded.
Do a permissions repair... and clean up excess icons on your desktop. You'll see a speed up.
You will see some performance hit if you are running too many applications at once with too little RAM. How much RAM have you got installed now?
“unlike the hours and hours I spent trying to nail down viruses on my PC.”
Stay away from prOn sites and you won’t have those issues.