Your previous connection speed was right at the top of the range for an IP profile of 2000 kbps, and if you can hold onto your new speed you will move up to the next IP profile of 2500 kbps. You might be lucky, but there's no guarantee.
You might try using plug-in filters for your telephones and Sky box if you have one, even though you already have a filtered faceplate. It's grasping at straws, but it might just give you a small performance boost.