I mean, feared players and NPC’s running faster? No quest markers on the minimap? That’s all part of the experience, that’s the way it was. For me that’s part of the charm for this experience, and make no mistake, I do find WoW Classic charming. I ran around Teldrassil on the beta for a couple of hours and laughed myself silly, I had a great time. I’ll likely hop back on today and play around Mulgore for a while. It’s great fun. But for me it’s great fun exactly because it reminds me of how much like a cheese grater it could be sometimes, and it shows me concrete examples of how much better the game is now.
Each battle that you win will yield experience for each pet that participated. However, deceased companions will not receive any experience (so make an effort to keep them alive by swaping in a different pet). Experience gains are based on your pet's level compared to the wild pet. Defeating a higher level opponent will grant more experience than a much lower level one, but be ready for a tough fight!
The vanilla WoW Horde leveling guide you see on this site was originally made back in 2006 by Joana (AKA Mancow, or FuriousPaul). The guides have been tweaked many times over the years to make things "faster". The leveling guides were made because of all the messages I got from people asking me how I was able to level up so quickly on new realms. I was first to level 60 on 7 different realms (3 with Mancow and 4 with Joana), even winning Blizzard's "First to Level 50" contest they held back in 2006.