If you are on 60mb Package then your upload will be 3mb but can be in the range of 2.85mb.
if you upgrade to 120mb you will get the 12mb upload speeds which you will be getting about 11.20mb out of it.
So upgrading would be worth it.
As above, upgrading to 120 will get you the 12 upload. You can wait for the upload speed doubling which will give you 6mb upload but at present we don't have a timescale as to when this will be rolled out.