I don't know a lot about hardware. I've got a Yoga Slim 7 and the Performance settings can't be set for know from Linux. I've disassembled the DSDT tables to look at even if I don't understand anything beside the tree hierarchy and the bitwise maths/control structure.
My question is: is it really risky to try methods that would look close to what I seek, without understanding the DSDT table, just to see what happens?
What are the consequences? Can the ACPI methods unset deep things in the firmware settings, things that wouldn't be in the BIOS menu and would affect other OSes?