Slow running Cumulative total calculation for Calculated Column

Anonymous 

Thanks to your suggestion! I have changed the calculation to:

Running Total =
CALCULATE (
    SUM ( 'Table2'[Logic 1] ),
    FILTER (
        'Table2',
        AND (
            'Table2'[Individual ID]
                = EARLIER ( 'Table2'[Individual ID] ),
            'Table2'[Index]
                <= EARLIER ( 'Table2'[Index] )
        )
    )
)

And the calculation of Logic 2 to:

Logic 2 =
RANKX (
    FILTER (
        'Table2',
        AND('Table2'[Running Total] = EARLIER ( 'Table2'[Running Total]) ,
            'Table2'[Individual ID] = EARLIER('Table2'[Individual ID]))
    ),
    'Table2'[Index],
    ,
    ASC
)

Now the columns is getting calculation in less than 1 min than 1hour before.

Thanks!!