https://www.epo.org/en/node/pph-and-other-acceleration-3

Can I apply for an extension of time limits when the application is being processed via the PPH?

As a matter of principle, a request for an extension of time limits is per se not compatible with the rationale behind accelerated prosecution. Therefore, applicants are advised to refrain from requesting an extension of time limits for applications treated via PPH, as this contradicts, the main idea/element of the programme.