Question V2.1 server side questions

[Yamino]

Well i made the 2.1 server run on my comp but i got some questions


1st question:

What are these fields in loginserver.ini ? o.o

PHP Code:

CODE=
SEVERNAME=²âÊÔ·þÎñÆ÷
MAPITEM=2000
GOLD_NOVELITY=8000
NUMBER=
ID0=
ADD_EXP=500000
WEBSHOP_ADDR= 


2nd question:

Why in version 1.8 there's a sql port selection option and in 2.1 there isnt a port selection variable? ._.


3rd question:

Why does V2.1 lags up my computer when V1.8 doesnt?


4th question:

How come V2.1 lags ingame (i mean alot...) and V1.8 doesnt? O_o



Thanks for the help ._.