So, what does this mean is efficiency with the service and how is the performance related to the high and low fees as well? hmm, maybe so. I'm also not very familiar with paying using a black card. However, I might think that what this means is that it takes quite a long time and sometimes there is a delay when using P2P services, even though the fees may be smaller. So if you want to get much faster transaction quality, you need to use other services which in fact require higher costs.
Sometimes this happens, the faster and more reliable the service, the higher the costs. And this is what makes us often think that in a certain time, we have to spend more to gain faster, more reliability, and much better services.