jtr99 : Jose, when you go to Options -- Miscellaneous, have you got Multiplayer Speedup Option set to Yes, and the Dynamic LOD reduction slider set to 1.00? This might help a bit if you have these two options set to something else
yes jtr99 set 1.00 and more details in low level
The temperature of my prescott belongs to 75-80 º, it can influence the yield?