Miners may use GPUs to accelerate mining for potentially larger rewards

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Steps to reproduce the behavior

When a significant amount of time (which means a big reward) has elapsed since the last block was mined, sophisticated miners, using strategies similar to front-running, may employ GPUs to enhance their mining competitiveness.

For instance, they might replicate the original data and mine with numerous miner addresses using rented GPUs. To understand this tactic fully, we should consider testing it ourselves first. This will enable us to observe its effectiveness and develop strategies to counteract it.