Since you have a 64 bit OS you may as well run IE in 64 bit mode, but I doubt you'll notice very much difference, I have a 64 bit version of FireFox called 'pale moon' which I tried out but I don't notice much difference in speed and when you think about it it still takes the same time to carry out the liveware inputs, the upload/download speeds are the same, so all we are really going to get is a slightly faster page rendition.
No doubt someone else will come along with a different view in a minute.
