I've had my Spathiphyllum wallisii for about four months now, and I'm still figuring out the watering sweet spot

I've had my Spathiphyllum wallisii for about four months now, and I'm still figuring out the watering sweet spot. Everyone says they're dramatic and droop when thirsty, but mine seems to sulk even when the soil isn't totally dry—I'm wondering if my cold apartment (around 60°F) is slowing its metabolism? Has anyone else grown one in chillier conditions? I'd love to know if I'm just being impatient or if there's something I'm missing.