Currently, retiming and verification looks for the first frame of the Super Mario 64 logo and assigns that value "1.33". Said frame is here:

I propose that the timing be changed to a later part of the title sequence, potentially this frame:

You can see the selection in timing in the bottom right. From the first frame to the frame I propose a time of 4.634 seconds elapses. By adding the 1.33 we currently use, that would give a start time of 5.964. This should be double checked if this change actually will take effect.

Why change this? Currently, a lot more players are starting to use HDMI capture cards and more advanced setups. Many of these setups take too long to get the signal. I have had a run rejected before due to it not grabbing the signal fast enough, but luckily on my setup that only happens on the US version of the game. Some people aren't so lucky, and this happens on both US and JPN. Here is a video of me explaining my setup:

I'm not sure what the slowest capture card is. That would require some community feedback. The frame I chose is purely based on it being easily identifiable, being much later than the SM64 logo, and being before a user can input Start. Leaderboard times will all stay the same, but more people can submit runs and more setups can be used.

I've been told that runs aren't being rejected for this reason anymore. (Not because of this post)

Part of the question really is are you physically shutting off the console and turning it back on or just pushing the reset button? Because I myself ran into this issue starting the game myself while using an HDPVR2 and this was due to me using the power switch to reset the game. Once I just started using the reset button everything's been fine capture-wise.