In that case, try using Javascript in advanced settings to define a new calculated field that would group issues PL vs Not PL and then import this calculated field as new dimension.
That would make the report much faster when using the new dimension as filter for the report. Then you don’t need to use filters by name using matches expression (which is slow and in some cases even doesn’t work).
See something similar here: JavaScript Code - #2 by lauma.cirule
Martins / eazyBI