About UOMOD.dll

Hello,
Since the source code of the dll is not shared i had to reverse engineer most of it. What i found is it changes array of values regarding movement timers i believe.. 2 to 4 others 4 to 8 and 4C to 00. But When i do it without the dll i have the same result except characters look like they jump or skip some tiles while walking. I just wonder how did you achieve that? 