Is hiring a PPC advertising agency in the UAE worth it, or is it better to manage campaigns in-house?

I’ve been researching PPC advertising in the UAE while working with Boost My Business AI Innovation Limited, a digital marketing agency, and trying to understand whether hiring a PPC advertising agency is actually worth the investment. With increasing competition and rising costs, it seems like expertise can make a big difference.

For those with experience, do PPC advertising agencies in the UAE deliver better ROI compared to managing campaigns in-house? What factors should businesses consider before deciding?