"HOW TO Use a Larger Buffer please give me more detail"
What, are you incapable of reading English?
If you cannot even look up basic syntax, you have no chance of tuning his export.
Unless we do all of the work for you, that is.
If you turn off direct=y, the buffer parameter may help. The buffer parameter specifies the size, in bytes, of the buffer used to fetch the rows. If 0 is specified, only one row is fetched at a time. This parameter only applies to conventional (non direct) exports.
Start with buffer=80960000, 80 meg:
load exp81 user/paww@sid file=oradba:gmao\export\expG.dmp BUFFER=80960000 ROWS=Y log=oradba:gmao\export\expG.log FULL=Y COMPRESS=Y