LEFT_ALT is triggered with delay every second press

It is funny but on my hardware alt is not being triggered immediately every second press.
```kotlin
if (Key.values().any { keys[it] }) println("pressed: ${Key.values().filter { keys[it] }}")
```
I.e. if I press alt for the first time, I see `pressed: LEFT_ALT` in console. If I wait any time (tried with 1 secs, 5 secs) and press it again, I won't see the log text immediately. But after like 1 second of pressing it will appear. It happens every second press, which is funny.

Maybe worth to mention that I have two alts and both of them are registered as `LEFT_ALT`.

**Hardware:** asus zephyrus g14
**Java version:** azul openjdk 15.0.6
**korgePluginVersion**: 3.0.1

Run the Kotlin key-state logging snippet on the reported Asus Zephyrus G14 with Korge 3.0.1 and confirm the delayed second LEFT_ALT press. Then trace the keyboard input handling from the reported LEFT_ALT state and compare successive presses; done means both registered Alt keys are reported immediately and consistently.

Written by the indexing model from the issue text.