The reason Waldo didn't act immediately was that he noticed the three individuals in front of him were fully prepared for a decisive battle with him. This situation did put some pressure on him.
Of course, it wasn't that he was afraid. Rather, he was concerned that during the fight, the trio might secretly damage the Super Source Stones. This was a distinct possibility. They certainly understood that what Waldo desired most were the Super Source Stones.
If they knew they wouldn't survive, they would likely damage the Super Source Stones, preferring mutual destruction. That would be a significant loss for Waldo.
Therefore, he had to think of a solution. There were two options. The first was to promise them a way out. However, this was contingent on them handing over the Super Source Stones.
The second option was for Waldo to seize the moment and eliminate the three individuals instantly, giving them no time to react and destroy the Super Source Stones.
