I've had my Ficus lyrata for about eight months now, and I'm still figuring out the watering rhythm

I've had my Ficus lyrata for about eight months now, and I'm still figuring out the watering rhythm. It sits by a north-facing window in my cold apartment, which I think slows its growth, but I'm honestly not sure if that's helping or hurting. The new leaf unfurled really slowly this spring. Has anyone else grown one in low light? I'm wondering if I should just accept it prefers brighter conditions or if patience is the real answer here.