TRANSMITTER pixel rook make DELAY

pixel rook tregger it TTL passthroug so i use transmitter on camera's hotsooe with ex580 II flash another trigger with YN560 for background light.

when i shoot dancing people i sow the issue of flash delay so i did test at home.

i put pixel rook transmiter in hotsooe of camera on it i put YN560 flash in manual 1/16
another YN560 i connect to ROOK resiver same power 1/16 .

when i shoot i quickly muved camera from left to right ( you can shoot quick action or you can just move you camera)
both flashes on first sync. no other light sours (dark room) no pre flash.
this is result

when i used same method two flashes but without triggers just optical slave in YN560 i got good result

should i get another triggers like POTTIX , pocet wizard or all trigger with TTL passthroug has this issue?