diff --git a/openwrtbuilder b/openwrtbuilder
index 17394c5..d75ee5f 100755
--- a/openwrtbuilder
+++ b/openwrtbuilder
@@ -640,13 +640,16 @@ from_source() {
   done
 
   # Expand seed into full config
-  execute make "${make_opts[@]}" "-j1" defconfig
+  execute make "-j1" defconfig
+
+  # Run serial make download for better reliability
+  execute make "-j1" download
 
   # make_opts+=("-j$(($(nproc)-2))")
   ((DEBUG)) && make_opts+=("-j1") || make_opts+=("-j$(($(nproc)-2))")
 
   # Make image
-  if ! execute ionice -c 3 chrt --idle 0 nice -n19 make "${make_opts[@]}" BIN_DIR="$BIN_DIR" download world; then
+  if ! execute ionice -c2 -n7 nice -n19 make "${make_opts[@]}" BIN_DIR="$BIN_DIR" world; then
     echo "Error: make failed"
     return 1
   fi
diff --git a/profiles b/profiles
index 7245efb..bf64efc 100644
--- a/profiles
+++ b/profiles
@@ -19,7 +19,7 @@ declare -Ag r4s=(
   [target]="rockchip/armv8"
   [filesystem]="ext4"
   [packages]="${default_packages[*]} \
-    luci-app-ddns luci-app-sqm irqbalance \
+    luci-app-ddns luci-app-sqm \
     adblock luci-app-adblock \
     collectd-mod-df usbutils kmod-usb-storage kmod-usb-storage-uas \
     kmod-fs-btrfs btrfs-progs block-mount smcroute avahi-daemon \