Does Jailbreaking the IPhone slow it down?

I'm getting an IPhone 5 and I want to jailbreak it and get the app "MakeItMine" that is it. The app is to change the banner/carrier of the phone and that is all I will do if i jailbreak it. I need to know if this will slow the phone down, if it will then I just won't jailbreak it.

It depends on the apps you download.other than that it won't

  • Will jailbreaking my iphone 5s make it slow? I'm just going to get jellylock 7 that's all. I'm scare that my phone will break or stop working
  • Will jailbreaking make my device slow forever? I want to jailbreak my iphone 4 its a bit slow already but i wanted to know if it would slow my device forever as if i wannt to restore i want it fast again my friends have told me it will stay slow but i don't know someone tell me?
  • Why does my internet slow down when my iPhone is charging? Whenever me or my family are either charging their phones with the Wi-Fi on or our laptops with the Wi-Fi on, the internet slows down incredibly. What are the causes? Once we take off the Wi-Fi and charge it, the internet is alright.
  • What are the down sides to jailbreaking your IPhone? I want to jailbreak my IPhone 4S. I want to know if there are any down sides to jailbreaking it? Some people told me that if I jail break it then my warranty on it is gone. I know the good things about doing it but what are the downsides?