Since you are looking for version 5.9, you might be interested in the performance improvements and features included in the BlueStacks 5 series:
: Uses up to 50% less RAM than other emulators for a smoother gaming experience. Since you are looking for version 5
: If you have a slow internet connection, use the BlueStacks 5 Offline Installer provided by their official support team. Key Features of BlueStacks 5 Since you are looking for version 5
Are you having the official version, or is there a specific game you're trying to play? Release Notes - BlueStacks 5 Since you are looking for version 5