If you think your Internet connection is too slow, or you just want to upgrade it, you owe it to yourself to measure how fast it is. There are a number of ways to measure it, but I like using this: Speedtest.net by Ookla – The Global Broadband Speed Test.
Record both your upload and download speed. Ideally, do it at different times of the day, and do it for both weekdays and weekends. Once you have that information, you can decide on what services would be an upgrade to this.
Also, while speed is important, the other thing to consider when you are upgrading your service is what your monthly bandwidth usage is. Your current ISP should be able to tell you that.