Jarvis, is this normal?

https://preview.redd.it/ii5dockbkxsf1.png?width=1043&format=png&auto=webp&s=abdd168e3b984c7c0c8f253d815979c5cbb54842

So I just got the Moondrop Space Travel 2 less than 2 months ago, and it seems like the left seems to die off much earlier. I heard a tiny variation is normal but this seems huge. Like about 30% difference. I don't have experience with this type of problem so I wanted to ask here first before trying to claim warranty. Thank you for any help!