As a portfolio manager, you are tasked with evaluating the performance of a hedge fund that employs a market-neutral strategy over the past three years. During this period, the fund generated annualized returns of 8%, 6%, and 10%, with annualized standard deviations of 4%, 5%, and 7% respectively. The risk-free rate remained consistent at 2% throughout this period.
To compare the fund's performance against a benchmark, you decide to compute risk-adjusted performance measures including the Sharpe ratio and the Sortino ratio. Given that the benchmark has consistently returned 7% with a standard deviation of 6%, what would be the most appropriate assessment of the fund's performance based on the calculated values of these ratios?