[Pharo-project] transcript slowed down by closure rollback?

When I compare Time millisecondsToRun: [1 to: 1000 do: [:i | Transcript show: i printString ; cr]] in 10195 -> 2713 ms and Time millisecondsToRun: [1 to: 1000 do: [:i | Transcript show: i printString ; cr]] in 10296cl -> 5841 So may be we rolled back some changes I harvested from igor. Igor do you remember? Stef