Too many Aggr()?

[MEBG93]

in the front end, should I avoid creating too many aggr()? 

Does it affect performance?

[tresesco · Accepted solution]

You SHOULD avoid using too many aggr() in the UI, it affects the performance negatively.

Read these:

When should the Aggr() function NOT be used?  

Pitfalls of the Aggr function