This arc is suffering from what most Arcs in OP suffer from (except MF and the second part of SA), the weekly releases of 17 pages which translate into "slow pacing"OMG. That makes so much sense, finally.
One Piece really should be read as a single story and not judged chapter by chapter, buy the volumes and read the arc, it's simple, we spent a month on the Tontattas and everyone started to lose it but once the arc is finished that part will take you about 8 minutes to read