Optimize DAX Measure

Hi,

I experience slowness when i'm trying to create a measure of estimate data which is build from:

Actual SAP until date of update

+

Manual Forecast data (*date greater than Actual max date)

+

Budget data (*date greater than Forecast max date)

=

FY Estimate data by months

Here is my DAX measure:

Estimate :=
VAR ActualMaxDate =
    CALCULATE (
        MAX ( FactAccounts[Date] ),
        FactAccounts[Info Provider (Key)] = 1,
        ALL ( DimDate ),
        ALL ( DimZTFA ),
        ALL ( DimFA_Solo ),
        ALL ( DimFA_Consolidated ),
        ALL ( DimFA_SubConsolidated ),
        ALL ( DimBooklet ),
        ALL ( DimAccounts ),
        ALL ( DimInfoProvider ),
        ALL ( DimPnL )
    )
VAR ForecastMaxDate =
    CALCULATE (
        MAX ( FactAccounts[Date] ),
        FactAccounts[Info Provider (Key)] = 2,
        ALL ( DimDate ),
        ALL ( DimZTFA ),
        ALL ( DimFA_Solo ),
        ALL ( DimFA_Consolidated ),
        ALL ( DimFA_SubConsolidated ),
        ALL ( DimBooklet ),
        ALL ( DimAccounts ),
        ALL ( DimInfoProvider ),
        ALL ( DimPnL )
    )
VAR ACT =
    CALCULATE (
        [Total FactAccounts],
        FILTER (
            FactAccounts,
            FactAccounts[Info Provider (Key)] = 1
                || FactAccounts[Info Provider (Key)] = 1.1
                || FactAccounts[Info Provider (Key)] = 1.2
        )
    )
VAR FC =
    CALCULATE (
        [Total FactAccounts],
        FILTER ( FactAccounts, FactAccounts[Info Provider (Key)] = 2 ),
        DimDate[Date] > ActualMaxDate
    )
VAR BG =
    CALCULATE (
        [Total FactAccounts],
        FILTER ( FactAccounts, FactAccounts[Info Provider (Key)] = 3 ),
        DimDate[Date] > ForecastMaxDate
    )
VAR Result = ACT + FC + BG
RETURN
    IF ( Result = 0, BLANK (), Result )

Can anyone help me optimize the formula?