Should BitLocker be on or off?

Hello there, I'm curious to know about the best practice when it comes to the security feature BitLocker. Should it be turned on or off on my device? I understand that BitLocker provides encryption for my data, but I'm also concerned about the potential impact on performance. Could you please elaborate on the pros and cons of having BitLocker enabled or disabled? Also, are there any specific scenarios where it's more beneficial to have it one way or the other? Thank you for your insights.