I have set up a small network of 5 nodes. I am making all 5 of them generate transactions to their maximum capability by using a load testing tool for a 5 minute time duration. For all of my experiments, one node outperforms the other with around 100-110 tps, but all the other nodes only achieve less than 15tps. I have made surer that all the nodes start generating transactions at the exact same time. All the nodes have exactly the same specs and the same programs are running on them during the experiment. I don't understand why this is happening.