I wouldn't even call it stalling. 60+ characters at Onigashima. This chapter brought back Hawkins, Drake and WW after many chapters.
Stalling would have been showing 17 pages of the Strawhats fighting fodder.
Stalling in a sense that the pace has slowed down considerably.
We've now had two chapters in a row (with this one it might be three in a row), where really not much story-progress happened.
Just think about it: Three chapters ago Kaido took the scabbards to the rooftop and the minks were about to go into sulong-form.
I mean those last few chapters weren't bad per-se, but how has the story progressed since chapter 987?
Big Mom has been trolled two times, Yamato is still creeping around and Momo has been freed. That's it though. Literally nothing else has changed since the ending of chapter 987. We haven't even seen anything from the minks or Kaido again.