There are a few steps that you need to perform in order to make the slides of your air hockey pucks better during playing. These steps are as follows.
Wax them, and after that, clean the overall surface of the table, your table mallets, and pucks.
Try using silicone spray as a lubricant but remember to apply the lubricant with caution.
Always clean the fan blower.
Try to cover your air hockey table whenever it is not in use.
In the end, always clean table holes.