rowcount为700行，执行速度好慢？怎回事？

自定义方法：
var easName = JavaImporter();
easName.importPackage(Packages.com.kingdee.eas.util.app);
easName.importPackage(Packages.com.kingdee.bos);
with(easName){
var ctx = pluginCtx.getContext();
var orgunid = methodCtx.getParamValue(0);
var materialid = methodCtx.getParamValue(1);
var sql="select cfmanuprocnumbos from T_BD_MaterialPlan";
sql = sql +" where FOrgUnit='"+orgunid+"' and FMaterialID='"+materialid+"' ";
var rowset = DbUtil.executeQuery(ctx,sql);
if(rowset.size()<=0){
methodCtx.setResultValue(" ");

}else{
rowset.first();
methodCtx.setResultValue(rowset.getObject(1));

}

}

客户端调用代码：

for(var i=0;i var materialid=sktable.getCell(i,"material").getValue().id;
var params = [moStorageOrgid,materialid];
var result = BOClientTool.callCmethod(PK,name,params);
sktable.getCell(i,"mamhao").setValue(result);
}
rowcount为700行，执行速度好慢？怎回事？