diff --git a/ci/base.yml b/ci/base.yml
index 3f644c1e..3619b8f2 100644
--- a/ci/base.yml
+++ b/ci/base.yml
@@ -30,6 +30,9 @@ local_conf_header:
     CONF_VERSION = "2"
     BB_NUMBER_THREADS = "16"
     PARALLEL_MAKE = "-j16"
+    XZ_MEMLIMIT = "25%"
+    XZ_THREADS = "16"
+    ZSTD_THREADS = "16"
     LICENSE_FLAGS_ACCEPTED += "Arm-FVP-EULA"
   setup: |
     PACKAGE_CLASSES = "package_ipk"