Slow label response to shortcut

Description

When using the label shortcut, and then starting typing to find the label, it is common that the app won’t recognize the first typed letter: there seems to be a delay after pressing “L” as the label short cut.

To Reproduce…

Press the label shortcut
Immediately start typing the label
The first letter won’t be recognized

Expected Behavior

Immediate response

Setup

macOS 11.6.2
Mailspring 1.9.2