The flags you want are -O, -inline -release. If you don't have those, then that might explain some of the slow down on slicing, since -release drops a ton of runtime checks.
-noboundscheck option can also speed up things.
The flags you want are -O, -inline -release. If you don't have those, then that might explain some of the slow down on slicing, since -release drops a ton of runtime checks.
-noboundscheck option can also speed up things.