Suggested minimum capital increase is wrong

Everytime our strategy makes a new high in revenue, the minimum capital to trade the stategy goes up. Why is that? The strategy is trading only the size of position that the minimum captial was established for the strategy. That is part of the risk managment. The lower minimum captial to trade our system is one of the main draws for investors to subsribe to our stragegy. Please explain, because this is BS and misrepresents how the strategy trades.