I run Norton 360 on both windows and Mac. On the windows version I have a brand new computer with just video games installed. It runs perfectly, but Norton keeps interrupting me with advertisements that tell me something is slowing my computer down and Norton Utilities can help.
My problem is really that Norton's VPN is slowing me down on my MacBook Pro. It seems to be installed properly and has the Checkbox on the top row where I can turn in on or off. When VPN is not connected my download speed is 550mbps. When it is connected dl speed slows down to 26mbps. Why does this happen? I have not tested this on the windows version.