I would first warn you that you can't flash just any radio onto any other phone. Your DNA will have radios that are designed to function with the specific chipsets that the phone used for its radios. Don't flash anything that is not tested and confirmed safe for your phone lest you potentially and quite possibly permanently damage the radios or the entire phone.
Also, radios are not JUST the chipsets and the firmware, they are also antennas and placement of said antennas. Some manufacturers (i.e. Motorola), are seemingly infinitely better at the right blend of all 4 than most others. I've seen this first-hand over the last 20+ years, having started IN the cellular industry when the CarPhone was the order of the day and when "portable" phones - then "bagphones" were JUST making their appearance and were only for the rich and famous. I was at that time a Bell Atlantic Mobile (BAM), agent and saw the industry in it's infancy through pubescent age. I can tell you I've seen a lot of phones, some good, some remarkable and some were nearly DOA. Of all the phones I've seen, touched, programmed and used, none has more consistently and more remarkably performed from the perspective of making a simple phone call than the Motorola line, year after year, model after model.
You are very likely not going to get the same performance from the DNA that you do from the RAZR with respect to cellular and also WIFI communications, however geographical location and topography play a HUGE roll in that as well, so even with a great phone in a poor coverage area, you're going to experience slow data rates and poor phone call performance, and conversely in a very well covered area even the lousiest of radios will perform with what may seem like flawless performance for the most part.
