Hi @acrith!
I would check out the Post that I made last year when I also had problems with this.
Invest in an anti-static gun or fan. Using that has helped us tremendously in allowing the scale to stabilize faster. Waiting a period of time is still helpful so that it can acclimate to temperature and humidity, but if you still see fluctuations after the initial acclimation period, then hit the balance adapter/labware with the anti-static device.
It would be worth checking into the humidity of your lab as well with a monitor. We have a harder time in one of our labs because it gets pretty dry during the winter months.