The speed of building statistics depends very much on a complexity of your Popups (especially a number of stats with filtering on Board Groups and Bet Sizings). In addition, the amount of free RAM is also very important.
Also, most issues occur when users try to build a report on a huge database on many players at once. For example, for
all players.
You can create a simple Popup(2) for your report and build the report with the help of the specified criteria and expression (1) instead of all players: