OK, stop. This is not a democracy, where every user should have some advantages based on his computer. This is supposed to be a game where certain elements have certain functions and these should not be adjustable or optional. In other words turning off these elements is basically cheating.
It's like saying "You can't afford a good pc for Splinter Cell? Well, then play the same game with shitty graphics and to compensate this we deactivated the walls for you, so enjoy that". You break the game.
I had shitty systems too and you know what the solution was? Work for a better system or play with shitty graphics. Or don't play at all. I'm not willing to play a game against people who basically play a different game because their surroundings are totally different to mine and I am forced to play with shitty graphics so I can stand a chance against them.