Try to reload specific cell but IGListKit reload all section?

[BigVeila]

Hi, I using this code to expand cell self.collectionContext?.performBatch(animated: true, updates: { (batchContext) in batchContext.reload(in: self, at: IndexSet(integer: 0)) }) in section It's perfect to expand this cell, but this function make collectionview reload all section in sizeForItem. This is problem because in sizeForItem function, I calculator a lot and this make app lagging a while. Why it do not reload only chosen cell? Thanks