Hiya @LPayne (Lauren)
Based on the speeds your currently mentioning i would say that the household internet package that your currently on is a 40mb download and up to 10mb upload package so those speeds would fall within these ranges which is a little low on the download side but there are circumstances where distance from your local connection point/cabinet/pole can reduce this.
Now For the Good Point…The way Cuckoo is designed is its on the top Tier of the Broadband Packages running the 80/20 Package which means its and Up To 80mb Download & Up To 20mb Upload so if the average in your area is 74mb when you run the checker it will be around this or even more once the line is tested Over the First 10 Days of Going Live.
You can use the Address Checker From BT Wholesale on the link below
Which will show you the maximum speeds the connection point should have on the technologies within.
If you post a screenshot but crop the top of the results image where your location details will be displayed I can explain this a bit better.