I need some help how to turn off auto sync in Rekordox DVS

Greeting from South Korea, 

i have problem with auto sync while Im using Rekordbox DVS vinyl.

Is there any way to "completely turn off" sync ?

For example, Serato has sync mode and I can manage sync as "turn off" in Serato DVS setting. but I can't find detail setting about sync in Rekordbox. 

I tried to turn off all "sync" (Quantize off, BPM sync off, Key sync 0) but both 1 and 2 deck's BPM barely adjust each other automatically while i try to mix two decks 

Please give me some advice!

Hope to get crystal clear answer for this problem ! 

Thanks!