PoET's scalability limitations mean it can be slower than other consensus algorithms like Delegated Proof of Stake (DPoS), which is designed for:

1. Faster transaction processing

2. Higher throughput

3. Scalability

4. Low latency

DPoS achieves this through a voting system, where stakeholders vote for validators, and a leader-based consensus approach. This allows for faster block creation and validation, making it suitable for applications requiring high scalability and speed.

In contrast, PoET prioritizes security, decentralization, and energy efficiency, which can result in slower transaction processing and lower throughput compared to DPoS. However, PoET's advantages in security and decentralization make it a great choice for applications prioritizing these aspects.