This may help those with only 1GB of RAM, however for those with more RAM I recommend leaving it at =0 for greatly reduced stuttering. Also make sure to raise your Cell Buffer values accordingly (see above) (Fallout.ini).Ä«PreemptivelyUnloadCells=0 - If set to 1, this variable attempts to unload cell data it thinks you won't need. I suggest the maximum anyone should set this to should be around 262144000 (250MB), even for 4GB of RAM or more. You can raise these values even further to experiment, however note that raising this to a large amount doesn't force all the game data to sit in RAM, and can actually cause crashes. For those with 2GB, try double again at 104857600 (100MB). For those with 1GB of system RAM, try doubling the variable to 52428800. The default value equates to around 25MB (divide the value of this variable by 1024 to get KB, then by 1024 again to get MB). IPreloadSizeLimit=26214400 - This setting appears to determine the maximum amount (in bytes) of RAM allowed for preloading game data. For higher amounts of RAM, try raising them higher, however note that you should also raise the iPreloadSizeLimit value below (Fallout.ini). For 2GB of RAM, try 16 and 102 respectively. For example, for 1GB of RAM you can try doubling the values (6 and 72 respectively).
![gamebryo engine terrible optimization gamebryo engine terrible optimization](https://cdn.wccftech.com/wp-content/uploads/2015/06/Fallout-43.jpg)
Altering these values may help make performance smoother.
![gamebryo engine terrible optimization gamebryo engine terrible optimization](https://d13urrra316e2f.cloudfront.net/original/3X/e/0/e0577865790006ff7964f1852af8d3f5f229acac.jpeg)
The above values determine how many cells (for interior or exterior areas as relevant) are buffered into RAM.