Netbook graphic setting don't work mods those adding extra slots to game. When you turn on netbook graphic settings, you are getting graphic bugs like freezing birds, freezing bumerangs and some kind of bugs. These graphic issues also happen with default graphic setting when fps drops below 35. It acts like you have serious lag although your connection is being good.
I think it is inconsistency of some mods which add extra graphics like slots to game. For example "Extra equip slots". I guess game's graphic calculation fails with these mods, causes extreme freezing and symptoms like serious lags.