I brainstormed and came up with the following tactics that might help reduce risk:
1. Only allowing a strategy to work when the X minute bar is within a defined risk limit and/or abnormal market filter.
2. Converting from time to other chart types where the bars are same size. Not allowing orders if the bar is created too fast.
3. Converting market orders to stop market limits (at least for opens)/
4. Converting to limit orders +- ticks. Example, instead of buy open of next bar, buy limit close of the current bar+-x ticks.