What Is the Benefit of a Pool Adjusting the Share Difficulty Based on the Individual Miner’s Hardware?

Adjusting the share difficulty based on individual miner hardware (often called "vardiff" or variable difficulty) optimizes the mining process. It ensures high-hash-rate miners receive a higher difficulty target, reducing the volume of shares they submit, which lowers server load.

Conversely, low-hash-rate miners receive an easier target, ensuring they submit shares frequently enough for accurate contribution tracking. This balances server efficiency and fairness.