Pellets create quite a bit of heat.... Dust doesn't create near the heat as pellets...
Try turning your pellets into dust... I have done it and it works very well... The dust gives off less smoke but it burns longer so #/# I think the smoke is close to the same...
With dust, you can start the smoke about midnight and let it go through to the morning... I have done that... waiting until the evening temp drops...
Below is how I made dust from pellets....
https://www.smokingmeatforums.com/threads/making-dust-from-pellets.271863/