Apple customers are concerned about the performance of their iPads after it was revealed that the company was slowing down older iPhone models with poorly functioning batteries. In response to the controversy the iPhone-maker released a support document explaining why the throttling was necessary. The document revealed that the iPhone throttling was not a conspiracy, but an attempt by Apple to stop older models from randomly shutting down due to chemically aged batteries. Apple also noted in the document that the "power management feature is specific to iPhone and does not apply to any other Apple products."
This means Apple is not slowing down your iPad.
The iPad not only packs a bigger battery, but it is much better at dissipating heat, and it typically requires less charging. This means the iPad is less likely to suffer from the random shutdowns that can affect older iPhone models. Affected iOS products only include the iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE, iPhone 7, and iPhone 7 Plus. If you have one of these devices you can check your battery performance by navigating to Settings -> Battery and look for a message that reads, "Your iPhone battery may need to be serviced."
Apple has began offering $29 battery replacements to iPhone owners in hopes of getting ahead of the thirty-something pending class action lawsuits. It was recently leaked that anyone with one of the mentioned devices can ask for a reduced battery replacement at an Apple retail location. However, there have also been reports that Apple is struggling to meet demands and wait times have for a replacement have stretched into March.
You can contact Apple support to get help with a battery replacement.