zarkhaev There already is a hurry option to skip the majority of dialogue, the slowest part of OGH is killing enemies to reach the clear count for each stage.
That's a core part of the experience though.
If we can't reduce the NPC dialogue any more to have an effective reduction on instance time and we can't remove the mob killing since it's core to the instance, the issue is the rewards itself not being valuable enough to be worth farming.
Two works arounds to this is artificially making the rewards worth more, by making the recipes they're used in more lucrative, or by increasing the number of rewards given by the instance to compensate for their value.
The latter can affect future content which may also use temporal crystals however, so the former is easier to fix if it doesn't work out well.
