Performance of conditional suppression

Summary:

Is there any guidance for best practise on use of conditional suppression

Content (please ensure you mask any confidential information):

Is there any guidance for best practise on use of conditional suppression, the reason for asking is that I have a 20 row report where, based on 3 rules, different versions of the report appear, so if A is true rows 1 to 16 appear, if A is not true and B is true then row 17 appears, if A is not true and B is not true then rows 18 - 20 appear. At one point the performance on this was really bad and I noticed that in the rows 1-16 I had a rule that should have applied