Do a search for “One Pace”. A good feeling pace is about 2 manga chapters per anime episode but the anime creators reduced that to 1 chapter per episode when they started running low on material. One Pace edits the anime to 2 chapters per episode and has it follow the manga more closely.
A sample of a scene from an episode with both versions compared:
mnemonicmonkeys@sh.itjust.works 1 year ago
You’re right. Though unlike what a lot of others woll tell you, there’s not a lot of outright filler. Most of the added time is from panning shots and characters staring and not talking.
There’s actually a fan project that re-edits the series to take kess time and improve the pace a lot