After you've optimized a playlist, you're able to see the performance for the weeks prior to optimization compared to the weeks after optimization. You can do that by clicking the chart icon in the "streams" column of the Playlist Optimizer dashboard or in the 3-dot menu.
On the modal that appears, you'll be able to review weekly streams from the 3 weeks prior to optimizing the playlist and the 2 weeks after optimizing the playlist, as long as we have the complete data for those weeks. You'll typically see the largest increase in streams the very first time you optimize a playlist, but it's great to continue tracking the growth of your playlists as you re-optimize over time.
HINT: We recommend re-optimizing your playlists every 4 weeks or so.