How to prevent runtime update when Lutris starts and then install them manually

The runtime update when starting LutrIs doesn’t work due to network problems beyond my control.
So I want to prevent the “updating battleye_runtime” and any other similar updates from being run automatically when I start Lutris. I want to instead download them manually via a web browser and place them in their appropriate directories.
Can you help me:

  1. Prevent said automatic updates, either before each run or permanently?
  2. Find the updates here on Lutris website or other official places online(Github or anything)?
  3. Place the manually downloaded updates into their appropriate directories?
    Is it possible as an alternative to the second and third steps, to change the soruce/mirror for those updates?