Since optimizations are repeating a backtest over the same data, it would be faster if the data were saved to an FXT rather than read from the compressed storage during every pass. However, this would require several gigabytes on the MT4 data drive, depending on the amount of data selected for optimization.
This would be configurable by means of an option in the Tick Data Suite support assistant, in the Settings tab.
Note: this feature was implemented in v2.1.5 beta.
Among other factors, planned features will be scheduled for implementation based on user preference. Press Yes below next to "Did you find it helpful?" if you'd like this feature to be prioritized for implementation. Feel free to press No if it's not a priority for you.