When doing 100% speedruns, it can be helpful to know what the maximum time requirement is for getting 3 stars in a level so that you can better judge if you're on track to get 3 stars or not. That way, you can either reset the level quickly by pressing "R," or you can try to collect the present instead during a level playthrough where you were initially trying to get 3 stars.

From what I've found, the only levels where you can both get the present and get 3 stars simultaneously are levels 1, 4, 6, 7, 10, 11, and 12, although there could be more discovered in the future. If you can pull this off, this can end up saving a lot of time for your runs.

Credits to Fancy2209 for finding these times in the game's files:

• Level 1: 10 Seconds
• Level 2: 16 Seconds
• Level 3: 17 Seconds
• Level 4: 17 Seconds
• Level 5: 22 Seconds
• Level 6: 26 Seconds
• Level 7: 22 Seconds
• Level 8: 18 Seconds
• Level 9: 24 Seconds
• Level 10: 26 Seconds
• Level 11: 29 Seconds
• Level 12: 32 Seconds