Reply to Bright Nillionaire - (Julian Veloso mashup) need some suggestions!

Hey guys

Some of you might have seen my thread asking for help on how to sync an acappella with another track on ableton, well i believe i did a half-good job on syncing them.

I came up with this mashup and i need some help on trimming it and making it sound better.

What i want to point out:

1- I need something to bring in the vocals without slamming them in, something like dragging out a vocal before it actually starts to make it seem less abrupt when it comes into the track.

2- at the begging i wanna make something like speeding up a small snippet of the vocals, then slowing it down while also pitching it down.

3- Maybe syncing it a lil bit better in some parts that kinda feel outta sync

4- Any other cool effect/suggestions taken!

Here is the link: