Why is my LTE and Wi-Fi so slow on iphone 5?

My internet have been really slow. I tried the speed test and Wi-Fi is like 3mb/s and LTE is like 14mb/s. Both are really slow. I can't even watch video. My phone is jailbroken, could it be that i have downloaded the wrong tweak? But it didn't happen until yesterday, i did not even download and new tweaks. Someone help please, i swear this iphone 5 seems to useless without fast internet…

Why are the 3G speeds on the iPhone 5 much slower than on the 4/4S? I don't live in an LTE area and I get full 3G signal strength but it's almost like the iP5 rejects 3G and it's slower than dial up. It's very disappointing because my 4S was very fast on 3G here and my 5 barely works at all. My only other option is Wi-Fi and we all know that there are issues with that too.

  • Why will my iPhone 5s only get 4G and not LTE? I purchased an iPhone 5s from the AT&T store 2 days ago and I can't get a LTE connection on my phone only 4G. My dad also went to get a 5c and his has LTE and is on the same bill I know I'm in an LTE area.
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  • Why is the Wi-Fi on my iPhone and iPad so slow? I have an iPhone 4, original iPad, and a big Mac computer. I'm having to ask this question on the computer because the connection is that frustrating. I have xfinity, which is usually fast, but right now it's just unbearable. But it's only on my iPad and iPhone. Why is this? How can I fix this? I've already reset both devices and it didn't work
  • Why is my LTE so slow on iPhone 5? I recently bought an iPhone 5 for Verizon around 2 weeks ago and the download speeds are slower then my house, and my house is like 150/ Kbps. Is this normal or does my phone have a problem?