Best QR format to be decoded?

[kunpoolsion]

Hello,
First of all I wanna say thanks for your work.

Question:
I would like to know if there is a known format of QR wich is best for being recogniced by your library.
I´m getting a lot of ECC errors (10 and 20 random chars qrs) using ESP32-CAM, it reads 1 every 25/30 tries.

Background:
I´m developing a small control system and there is no any fixed qr format I´m attached to, thats why I´m asking.

Maybe decreasing or increasing the L factor when generating the qrs?
I just need 2000 qrs that will be used with the app.

Any advice wellcome.
Thanks again.