diff --git a/metadata/com.Arturo254.opentune.yml b/metadata/com.Arturo254.opentune.yml
index 788b6d0713..aa871f6549 100644
--- a/metadata/com.Arturo254.opentune.yml
+++ b/metadata/com.Arturo254.opentune.yml
@@ -42,6 +42,10 @@ Builds:
       - apt-get update
       - apt-get install -y -t trixie openjdk-21-jdk-headless
       - update-alternatives --auto java
+      - export CPUS_MAX=8
+      - export CPUS=$(getconf _NPROCESSORS_ONLN)
+      - for (( c=$CPUS_MAX; c<$CPUS; c++ )) ; do echo 0 > /sys/devices/system/cpu/cpu$c/online
+        ; done
     gradle:
       - yes
     srclibs: