I believe you meant that you have an internet speed of 81 MegaBytes vs 81 Megabits.
From back in the day, there was a settings section for limiting your download/upload speeds, to make sure you didn’t max out your data cap/plan. I would suggest looking into that to make sure you’re not self-capping your DLs.
Also check to make sure that your ISP isn’t throttling your internet connection after you hit a certain amount of data. Look at the contract you have with them.
But like others have said, it could be a list of other reasons.
Edit: Just thought about it. Make sure that you’re connected with a Cat 5e ethernet cable or higher. You might be limiting yourself through your hardware.
If you need to get a newer ethernet cable, I highly recommend Monoprice.com as a place to buy online. Far more often, I have found that they have better prices (even after shipping,) and a wider selection of things than Newegg or Amazon for that matter.
Make sure you only count 1 fish.
Many fish are too much for just one person, more often than not.
Don’t be like The Count with them. Before you know it, you’ll be a high count of fish and not have enough stomach room for them.