Logic Pro X Mixing Audio tempo 70bpm/140bpm

I am a DJ, I have some general experience with many audio suite production suites - Logic seems more attractive with it's new Auto Tempo sync - and it is working for me. But I have one scenario that I'm not sure how to solve:

In a live performance, I can play a track a 140pm, and a 2nd track at 70bpm - The tempo's "match" with track A hitting 2 snares for every 1 on track B - a ballad or slow slong can overlay an EDM with no modification to pitch - Is it possible to synchronize these 2 tracks, in this method, in Logic?

I had some manual workarounds, but then when I modify the master tempo of the project it breaks.