Maven fight on Console.

Before i can even Load into the fight i am already Hit by the Degen beams in the last phase. It is pure luck if i die or not. I have no way to dodge or do anything and this is not a one time thing. Every maven fight is a gamble. please just do anything to make it fair. I am not even playing on ps4 which would explain getting Hit while still loading, but I am on the ps5 version and still cant do anything. It is a 75% Chance to just die because you just spawn with the beam effect already on you.
The only way to consistently beat the maven fight is by not dying once because all your other spawns/lifes are just a gamble if you need to return in last phase.

Do you move before the area is loaded? Usually you have a grace period after entering, so you can't be hit by anything. Or are the load time so extremly long that the period ends before fully loading?

I tried using the ps4 Version and there the load time seems to just be too long sometimes yeah.
On the ps5 version it seems to be kind of random. I tried not moving but if I spawn in the beam the wrong way, I still basically insta die.
Idk I think the immune time just needs to be a little bit longer or im just dumb.
Or maybe minor stick drift is causing me to move, but i dont feel any stick drift on movement stick.
Btw how does the Grace period work exactly?