Optimize DAX - Filters

Hello everyone! How are you?

Taking advantage of the Spanish forum, I make the following related query to optimize query performance:

I have a measure that has a SWITCH with 10 IF (each with its condition) and a variable with a FILTER that is applied to the SWITCH CALCULATE:

VALUE=
VAR KPIS =
FILTER (
Table_1;
 Table_1[ID_Account] = MAX ( Table_2[KPI_Account] )
)

VAR valor =
SWITCH (
Index;
 1; IF (Condition); 
2; IF (Condition); 
3; IF (Condition); 
4; IF (Condition); 
5; IF (Condition); 
6; IF (Condition); 
7; IF (Condition); 
8; IF (Condition); 
9; IF (Condition); 
10; IF (Condition); 
FORMAT ( CALCULATE ( [Actual]; KPIS ); formato )
)
RETURN
valor

I'm trying to optimize the query, for this I wanted to start by the FILTER of the KPIS variable.

According to what I have been reading the ideal is to apply a KEEPFILTER ( FILTER ( ALL, in case in the filter we are using a single table, but in my case I am using two different tables.

Does anyone have any recommendations to optimize the FILTER part? Maybe adding a CROSSJOIN?

Thanks a lot!

Best regards!