I need 10 million vests to reach dolphin status. Reputation score has no bearing on whether I am a dolphin or not. Reputation scores are logarithmic. Which means that you need much more reputation to reach the next level than it took to reach your current level. You think 53 to 54 seems so slow, try 64 to 65! That is where I am at now.

My reputation number is 21,942,619,340,171 - which converts to 64.071.
Your reputation number is 1,411,531,955,762 - which converts to 53.345.
You would need to acquire almost 20 times more reputation to reach a score of 64 than you have already achieved. People with high reputation scores can boost you quicker than people with low reputation scores. So hang around high reputation people and that will help you.