Got a mixture spikey and I dont think it makes any difference TBH, and nor would I expect it to given that no doubt the code is in parellel for sending to wifi and sending to the car, cant imagine it waits for the card write to finish before it sends it on wifi.

Shame there isnt a way to turn the resolution right down and make it quicker
I understand it cant be totally instant over wifi, but would be nice to get it quicker than it is for certain applications (reversing camera for example)