Oh wow, this erupted while I was gone. D:
I'll spell out what I did for people, hopefully this will help you especially, Happix.
1: I got a fresh install of Mabi this morning from the Nexon website.
2: I downloaded the V55 installer for Tiara from the usual place I get it on Mediafire, right here:
[Only registered and activated users can see links. Click Here To Register...]
2a: Oh, and before you click it, if you don't trust the link from a low post counter such as myself, mouse over it and look at the lower left of your browser to see if it's valid or not. Anywhoo, the folder you're looking for is at the bottom of the list, titled Tiara's Moonshine Mod. The installer is in that folder.
3: Install Tiara.
4: Go back to the first post of this thread and follow what the poster said to do.
5: Navigate back to your Mabinogi folder.
6: Find the file called IJL15.ini and open it. If your computer isn't set up to open it, when it asks you to select a program to open it with, use notepad.
7: Change all the "1" values after each line to "0" (Except for the zoom limit). Example follows:
7a: Before - ; Clear fog of war on dungeon minimaps.
ClearDungeonFog=1
7b: After - ; Clear fog of war on dungeon minimaps.
ClearDungeonFog=0
8: Now, this part is trial and error. Change some of them that you want back to "1". I'd recommend...
; Use bitmap fonts instead of vector fonts to prevent window lag.
UseBitmapFonts=1
And also, if you're a fan of zooming out hugely, change the zoom distance as well.
The font change alone eliminated most of my lag, so I hope it does the same for everyone else reading this.