Handeling mobs in a Tower Defense game. Tweening vs Pathfinding

As the title suggest, Wondering the diff between Tweening between Nodes, or using something like Pathfinding services is there a huge perf def, or any complications if i built the system using one or the other.

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Yes there is a difference, you should only use pathfinding when the path is unknown. If the map’s path is already set, you should use tweening to avoid the memory overhead that running A* algorithm over and over will cause. (not that it’s a lot, but it’s just not necessary in this case)