Is there a way of being uncapped?

[#1]

Admittedly, I get 70+Mbps down and 15+Mbps up, But I can tell that my line can go higher, It increases to a point where it seems to be capped! Is there a way it can be uncapped at all? I have the need for speed!
Thanks in advance. 

[#2]

How can you tell it can go higher

[#3]

On a speedtest, It always flies up to around 73-76 and almost sort of .... holds. The speed stays almost constant, I'm 20m from my cabinet and around 200m from my exchange, I just feel as if it could go higher, or am I just being optimistic? xD

[#4]

Given that the product you are on is 80/20 you are stuck with the speeds

[#5]

I'm surprised your not getting around 76+ regularly if your only 20m from the cabinet. What is your IP profile on the BT speed test.. I don't have the link as I'm posting via mobile phone.

[#6]

71-73 and 16-18 is about normal for an 80/20 sync, regardless of how far you are from the cabinet.