Is there any performance implication of not disabling old External Forecasts loaded via FBDI

Summary:

Is there any performance implication of not disabling old External Forecasts that were loaded via FBDI

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What is the impact of not disabling old external forecasts that were loaded via FBDI. over a period time because of this the number of forecast records incrase in the system. We are using 300 days Past Due Forecast Days in the Supply Plan so it will not consider Forecast data whose due date is prior to 300 days from the plan start date but we still want Plan inputs to have history of all our old forecasts that are not being used right now. Will this have any implication on the system performance or do we need to be