Having slow internet will force you to have to deal with lower quality settings and buffering. However, you will be able to avoid buffering and watch high-resolution videos once you opt for quicker Internet speeds. Keep in mind that what speed you need to comfortably perform activities will vary based on how many people are on the network, as well as what each individual person is doing. For example, you might have a high enough Internet speed to watch Netflix in HD, but not necessarily if your daughter is hardcore gaming in the next room.