Assuming you mean 7.15Mbps, it’s not fast by many modern standards but is a pretty reasonable average. There are unfortunately more factors that affect how well this line will “perform” for example when streaming TV (BBC iPlayer, ITV Player, Netflix etc). It’s not just about out and out speed. Who is the provider?
Until recently I had 6.5Mbps and it was fine for streaming TV and film – even HD stuff – for 95% of the time. Occasionally I would get buffering. My ISP was Zen who are more expensive than most because the quality of the line is so good even though on paper it isn’t the fastest.
What do you want to do on the internet?