By Daniel Kline The two cruise lines are constantly trying to one-up each other and Royal Caribbean may have just gained a major advantage. Sending a email while on a cruise can be a challenge and streaming video or texting photos is sometimes simply impossible. That’s because cruise ship internet has pretty major limitations. To put it bluntly, cruise internet is slow. Passengers pay around $20 per day for access on one device (which you can move between devices) and the service can be very iffy. On sea days, when a lot of people onboard use their phones to access the internet, outages are co…