Consider avoiding the provision of a "mission" or "vision" statement and instead focus on clearly articulating what your product accomplishes. For instance, Stripe could be described as "an API for processing credit card payments," rather than "increasing the GDP of the internet."
It's advisable to describe what your product does before delving into the problem it solves. For example, Figma would be introduced as "a multiplayer design tool in the browser," rather than starting with "strong design teams require collaboration...."