While a long backtest is always a good thing in showcasing the systems' generalization capabilities, consistency and adaptability over a long term, the stats the you provided above, does not give me enough information to fairly evaluate the system. The cyrpto market is really just in its infant stage and much of the action just happened in the last two years. The last two years of data is more relevant than the last ten years (I don't even know that futures existed 10 years ago!) because they have more meaningful data in terms of volume and liquidity.
Can you give me more specific performance data/metrics on just last two years starting January 2016, futures instrument you are trading, exchange, contracts, continuous pricing or rollover methods, etc?
PS- Tim, I might be misunderstanding you when your say " Trading futures, long only", I mistook it as crypto futures. Now just realized that you might have meant Futures in general. If so, disregard my comments above. My VC is only evaluating crypto currency systems.