How does negative track delay offset work in Musescore?

All VST makers use different sample attack lengths - here they all are - https://docs.google.com/spreadsheets/d/1WP9sobba7OkldNkTiSzXP7r3Pb64IzW…. Some are horribly inconsistent, like Spitfire, and some are elegant, like Audio Imperia, which always sets the attack length to 125ms for every articulation on every instrument. In your DAW you have to add a time offset to every track to keep instruments playing in time.

How does Musescore and Musesounds handle this? Especially now that Spitfire and Audio Imperia are selling sounds in the Musehub shop. Does Musescore apply the delay spreadsheet internally? Is it adjustable somewhere? I'd like to know before I buy any paid sounds, when that features eventually comes to Linux.

I've noticed for instance that the default Musesounds pizzicatos have very inconsistently recorded samples and sound out of time with each other.