diff --git a/build.sh b/build.sh
index c36b3355..4b1730a7 100755
--- a/build.sh
+++ b/build.sh
@@ -10,18 +10,18 @@ echo "Building Docker image ${IMAGE_NAME}..."
 docker build -t ${IMAGE_NAME} .
 
 echo "Starting container..."
-docker run -it --name ${CONTAINER_NAME} \
+docker run --cpus="8" -it --name ${CONTAINER_NAME} \
   -e TERM=vt100 \
   ${IMAGE_NAME} \
   /bin/bash -c "cd /home/builder/openwrt && bash"
 
 docker cp ${CONTAINER_NAME}:.config ./.config-build
-docker cp ${CONTAINER_NAME}:defconfig.log ./defconfig.log
+docker cp ${CONTAINER_NAME}:defconfig.log ./defconfig-build.log
 
-docker cp ${CONTAINER_NAME}:${FIRMWARE_PATH} ./ras.bin 2>/dev/null || {
+docker cp ${CONTAINER_NAME}:${FIRMWARE_PATH} ./build/ras.bin 2>/dev/null || {
   echo "ERROR: Firmware not found at ${FIRMWARE_PATH}"
   echo "The build may have failed or the output path is not ${FIRMWARE_PATH}"
   echo "You can inspect the container manually: docker start -ai ${CONTAINER_NAME}"
   exit 1
 }
-echo "Firmware copied to ./ras.bin"
+echo "Firmware copied to ./build/ras.bin"