v1.5:

• Introduced a caching system to enhance general performance. If you encounter any issues, it can be disabled in the config file.
• Data is now stored using player names, which results in faster and simpler functions in multiple places. Your data file will be automatically converted to the new format.
• Optimized the toplist code, and fixed a bug where it didn't read the values from the data file properly.
• Added bStats for plugin usage statistics. This can be disabled in the config.
• Added 3 permissions with a customizable message. These permissions can be enabled or disabled in the config file.

If you use placeholders you should update PlaytimeLink too.