When you kill a lot of things then your IPH increases. Since IPH comes from mass killing you can safely asume that having a good IPH is "somewhat equal" to a good XPH.
I was doing what you are doiung a couple of months ago and i realised that the best profiles that fitted for my neds (Exp) were the ones that run on A2 Oasis and A1 Fom-Crypt.
I prefer the oasis because you dont have those shitty trees there, specially when you are not "equipped enough" for tanking the trees (since the profiles make their best efford for you not to come into trees but the freaking trees still manage to get in your way).
So, i can recommend you
A1 Zorked Edition FOM-Crypt or maybe the
A2 In a Rush by KunstProdukt .
If you are a barb (wich you are because everyone is a barb nowdays) you should follow
this guidilines made by Chocoboos for a MP8-10 barb "able to".
If you are just interested in XP and dont want to lose time with items AT ALL then configure your trinity to skip all whites, blues, yellows and legendaries. Make it skip all items that can be "ticked" on the Trinity configuration and also remember to cap your potions at 100 so it dont keep piciking potions when you still have some. Get your money pickup rule to the max so it only picks money while running. With this setting you should NEVER do a town run unless you need to repair, wich should be setted to 15-20%.
Also, remember to configurate Trinity acording to the profile you will be using. The rules are in each of the profiles.
Happy boting.