It's making noise because the harddrive is loading or something. Which makes it go slower because it's loading.
cv joint problem.
Refused - New Noise
Could be a bad wheel bearing front or rear.
A faulty fan clutch.
it slows it down
a virus that slows down your computer
Yes, it slows down your computer and it is pointless.
It retards / slows the engine timing up when it detects an engine knock / pining noise like bad fuel are valve noise.
Noises are vibration waves traveling through the air. Adding interference in the waves slows the waves down and decreases the noise. The volume and placement of leaves on trees dampen noise thereby decreasing noise pollution.
On the air condition COMPRESSOR is an electric CLUTCH that may be making contact and noise while the a/c is off and the engine is running...when the a/c is turned on the CLUTCH engages, and the noise goes away.....good luck:)
It really slows down your computer.
it steals information and some bandwidth.. and slows down your computer