HP 41CX Auto-Off behavior

[polbit]

Acquired another CX (because why not!) and visually it is in fantastic condition. However I noticed one thing - it turns off after 6 minutes of inactivity instead of the usual 10. From my reading I understand that this is not adjustable and a capacitor is responsible for the time. Does that mean that I can expect it to get worse? Is it something that I should replace, will it cause any other issues?