Quick answer: Reproduction is slow when reports lack the specific conditions a bug needs to occur. Capture device, OS, version, settings, and a breadcrumb trail of what the player did, so you can recreate the exact situation instead of guessing at it.
Reproducing a bug, getting it to happen on your machine, is often the longest part of fixing it, because a bug needs specific conditions and a vague report doesn't tell you what they are. Reducing repro time is about capturing those conditions so you recreate the situation instead of guessing.
Capture the Conditions the Bug Needs
A bug happens under particular conditions, a device, an OS version, certain settings, a game state. "It crashed" tells you none of them, so you guess, and guessing is slow. A report that includes the actual conditions lets you set up the same situation directly.
Bugnet captures device, OS, game version, and settings with every report automatically, so the conditions a bug needs come attached. Knowing the exact environment collapses the search space you'd otherwise explore blindly.
Follow the Player's Path With Breadcrumbs
Even with the right environment, you need to know what the player did to trigger the bug. A breadcrumb trail, the sequence of actions and events leading up to the failure, lets you retrace their steps instead of randomly trying things until it breaks.
Bugnet captures a breadcrumb trail leading up to a crash or report, so you can see the path to the failure. Following the actual sequence is far faster than reconstructing it by trial and error.
Use Grouping to Spot the Common Trigger
Some bugs are hard to reproduce because they only happen in a combination you wouldn't think to try. When many reports of the same issue are grouped, the shared conditions, all on one OS, all after a certain action, become visible, handing you the trigger.
Bugnet groups occurrences of the same issue, so common conditions across reports stand out and point at the trigger. Reducing repro time is capturing conditions, following breadcrumbs, and spotting the common pattern, so reproduction becomes recreating a known situation rather than hunting for an unknown one.
Repro is slow because reports lack the bug's conditions. Capture device, version, settings, and breadcrumbs, and group occurrences to spot the common trigger.