Very slow response time when changing checkboxes when sharing performance profile

From dblohm7 in [bugzilla bug 1641333](https://bugzil.la/1641333):

# What were you doing?
_Please tell us what site you were on, and what steps led to the error you are reporting_

1. Set the profiler to Media profile
1. Start Recording
1. Capture a profile
1. Click Publish...
1. Under Include additional data that may be identifiable, disable Include screenshots

# What happened?
Noticeable, > 1 second delay between clicking the checkbox and change in checkbox state

# What should have happened?
A more immediate UI response

┆Issue is synchronized with this [Jira Task](https://mozilla-hub.atlassian.net/browse/FP-269)

Riproduci il problema tramite il Media profile flow: avvia una registrazione, acquisisci un profilo, fai clic su Publish e disabilita Include screenshots. Inizia dalla finestra di dialogo Publish e dalla gestione della casella di controllo; il lavoro è completato quando la casella di controllo cambia immediatamente, senza un ritardo percepibile superiore a un secondo.

Scritto dal modello di indicizzazione a partire dal testo della issue.