Is my game doomed?

Playing on switch. Recently after the update (no spoilers here, don’t worry.) my game has been lagging ever since. Is there any way to fix this or does this mean my console is too old as I’ve had it for about four years.

Playing on switch. Recently after the update (no spoilers here, don’t worry.) my game has been lagging ever since. Is there any way to fix this or does this mean my console is too old as I’ve had it for about four years.