It sounds like the vocals are off beat, try figuring out the tempo of them and bringing them up to the desired tempo with audacity since its free and all. It sounds like there is a lot of reverb on the basslines also, that's never good with a drop since it can take the power away from it and muddy up the low end quite a bit. Also with the drop master the level up a bit, it'll also help with the power issue. Over all it's a good mix, there are just some things that need touching up
