Note from the developers:
Over the past couple of weeks, we’ve rolled out a series of hotfixes aimed at improving overall pacing and playability of the low-level (1-20) experience. We started by adding a number of modern conveniences to our low-level quest experience, and will continue to roll these improvements forward across other legacy content in the future. We’ve also made some improvements to the overall pace of combat at low levels: Due to the accumulated effect of years’ worth of max-level tuning adjustments, many classes were killing low-level enemies nearly instantaneously, even without heirloom gear or other advantages. A summary of the hotfixes follows:
We see these changes as the beginning, rather than an endpoint – much work remains to improve tuning and pacing of the old-world level-up experience, and our efforts will continue into Legion and beyond.