Oh yeah? That’s surprising, I’m doing something similar - with esp32s from M5stack, specifically their SCD41 sensor for co2 (same as in the device in the post), with an AtomS3 to drive it, and it’s super responsive and I think very accurate. Perhaps you have the scd40? It’s rated for high accuracy up to 2000ppm, while scd41 maintains accuracy up to 5000ppm.

Using with esphome and homeAssistant, I grab the data every 5 seconds (I did 1s too but seemed unnecessary), and push it to HomeAssistant. The moment I turn on the oven, or open a window, or just enter the room after the night from the bedroom, the graph moves very very visibly and very quickly. I like this setup much more than my uHoo Air sensor.