Tristana feels like crap to play

She falls off super hard mid game, where most games are decided. Her identity as the tower destroying monster i remembered her as is no longer there since towers are pathetically weak especially when red buff and dragon burn can be applied to towers. Why take trist when I can take another ad carry such as and and do the exact same thing but with more utility and better skirmishing/teamfighting? if I wanted tristana's range, why don't I pick who has a better laning phase and mid game and starts at 650 AA range when trist needs to get to level 15-16 to even match that? She just feels awful and her kit gives me the impression that she is trying to do what every adc should do but falls short in almost every aspect when compared to her competitors.