A few suggestions from my side. Access the mobile versions of sites with your normal browser (the address normally starts with an m eg. m.news24.com). Or you can use Opera Mini browser on your desktop/laptop (you will need java and an emulator to run it). Or you can use an html only browser like dillo (obviously you can also access the mobile versions of pages). In all cases you can also turn off images.
I'm recently facing this slow pc problem,even opening a browser takes too much time...can you like help or give any helpful suggestion...?
sorry if i'm asking help in wrong section