Any way to fastly sync 4 different SVO files?

I’ve recorded 4 SVO files with 4 ZED2i cameras, 2 cameras in one Windows PC and the other 2 cameras in another Windows PC.

My approach is getting the timestamp ts[z] = zeds[z].getTimestamp(sl::TIME_REFERENCE::IMAGE) (z is the array with the 4 cameras) each zeds[z].grab() in a array of only timestamp metadata, but it’s agonizingly slow.

Is there any way to skip the grabbing? Or another way to do it?

Anything will help!