Impossible to login these screen

Hello Legacy Patcher team,

I write to you so you can maybe help me a bit with the following problem.
I've recently patched over my mid-2010 15 inch MacBook Pro.
Installation went fine, macbook seems very laggy but more than that, I can't pass the first screen at login. I wonder if there is anything I could do?

Below, the few steps my computer is going through :

At start, my computer crash, then boots normally.

Then it seems that it logins normally. I can shortly see the Dock & my icons.

Then it goes to a few steps like that. Male/Female voice then Accessibiliy or voice. It always ends by my computer being completely blocked at this stage