Reply to How to mix track that changes bpm during the song

Hi I have a remix of a song that starts off at 128 and then goes to 70 bpm. When I press sync on the other track is goes all the way up to 128 even though the first song is now at 70 bpm too.How can I mix another song in Traktor that is around the same 70 bpm ? I tried tapping the bpm on Traktor but the bpm just changed even higher than 128. Thanks