Get an IPS upgrade. It’s relatively inexpensive off Ali. I bought one for SP with shell, it’s modified to fit the panel so no need for surgical changes to the original shell. Now, it’s so bright that my wife complains when I power it on at night in bed or while she drives. It drains the battery faster, but I just pause and charge. I supposed non-SP might want rechargeable port mods.

GBA is so sick. I kept my broken GBA for +10 years before I finally had disposable income to fix it up. Honestly, I regret not doing it sooner.