Top 'lifetime' tracks aren't accurate

Just joined hoping to get a view further back than last.fm which I started using to track in 2018. The tracks listed as “lifetime” top tracks for me looks to be based on the previous 18 months when comparing to last.fm, and it doesn’t seem to include any of my listen history prior to that. Still, I appreciate the tool, just sharing feedback that the math isn’t mathing on that view. Thanks!