First of all, I would like to thank you for your patient answer, but things seem to have improved. I have been using the default SS316 configuration file, but I am using SS316L coil. I downloaded a CSV configuration file of SS316L from the forum and used it, and the smoke generated seems to be normal. In theory, there shouldn't be such a big difference, after all, the TCR of these two materials is similar. This is my latest device monitor screenshot, and I am not sure if it is normal, but the smoke generated is indeed much higher.
Also, it seems like I can't manually adjust the room temperature as it always shows a higher temperature