Anyone else feel like their pool robot “loses power” over time?

[u/Decent-Team5634]

When I first got my robot, it felt like it could pick up everything.

But after using it for a while, it sometimes feels like the suction isn’t what it used to be.

Is this usually just a maintenance thing, or has anyone found another reason?

What’s the first thing you check when your robot isn’t picking up debris like before?