regarding performance for local variable

It's a little hard to tell without a bit more information (what is the SAIL for your interface? what is the expression rule called in the first variable?), however a couple general suggestions:

• Use variables that don't refresh as much as you can. Basically, don't use with() or refreshAlways in a!localVariables().
• Union can be a slow operation depending on the data. One way to make it faster is to union against a null list instead of against the same data again. Here's an example:

union(local!associatedCompanies, touniformstring({}))

i have written code in a!localVariables(....)

in first variable i am calling query entity 

i got the issue the first variable which contains a!queryEntity() is always executing when ever we are calling the local variable 

can you tell me what to use in a!refreshVariable 

basically it is having with() functionality

i have written code in a!localVariables(....)

in first variable i am calling query entity 

i got the issue the first variable which contains a!queryEntity() is always executing when ever we are calling the local variable 

can you tell me what to use in a!refreshVariable 

basically it is having with() functionality

How do you know that the query is being called again?  Do the values change?  Or are you just seeing a large number of milliseconds?

How did you set the refresh of the union() based local variable?  Are you doing the union operation every turn?