If you join a pay site, is your computer safer?

[I<3roundness]

I love porn, but I'm concerned that I'm slowing my browser down (I need it for other things too), and possibly jeopardizing my computer. I've already crashed my hard drive once. I would be willing to cough up some cash to join something like bang bros., which puts out a lot of the small clips that I currently jerk to. Does anyone have any experience as far as security as a subscriber to a pay site? Is it one of the perks of joining that you are more protected once you sign in? Or am I just naive?

Thanks for any input.