Slow loading webpages on air

Check your internet connection speed.

 

Malware isn't possible, unless you actively installed it yourself. Macs are not immune to malware, but no true viruses exist in the wild that can run on Mac OS X, and there never have been any since it was released 10 years ago. You cannot infect your Mac simply by visiting a website, unzipping a file, opening an email attachment or joining a network. The only malware in the wild that can affect Mac OS X is a handful of trojans, which cannot infect your Mac unless you actively install them, and they can be easily avoided with some basic education, common sense and care in what software you install. Also, Mac OS X Snow Leopard and Lion have anti-malware protection built in, further reducing the need for 3rd party antivirus apps.

Mac Virus/Malware FAQ​

First, try resetting Safari, clearing your cookies and cache.
Then, try restarting your computer.
Then, check your DNS settings, using the instructions here: Why am I being redirected to other sites?
Check any ad-blockers that could be blocking critical elements of a site.
In Safari > Preferences > Security be sure "Enable Java" is unchecked and "Enable JavaScript" is checked.
Be aware that the problem could also be with the website itself.

 

Here is your fix

I had the same problem and spoke with Apple Care (those guys are great) I have a MacBook Air which was purchased a few months ago and here is what they did to solve the problem. Seems you and I are experiencing the same problem with slow pages loading in Safari (and Firefox for me)

I can't go step by step but basically, create a "test" username to see if your pages load quickly.

If so, then at least we know it's specific to the username you are using.

Now, go to Network preferences and highlight wifi on left
(make sure lock is unlocked)

click on TCP/IP tab

click on Renew DHCP Lease now go back to wifi tab on same screen (next to TCP/IP tab)

highlight your wifi network then click on minus button

now click on OK and Apply

Basically, what you're doing is resetting wifi or something like that, forgive not that computer literate. Anyways, after doing this, my Air loads as it did when I first bought it.

Hope this helps.

Cheers