diff --git a/r5-java/run.sh b/r5-java/run.sh
index 35b3942..be44d81 100755
--- a/r5-java/run.sh
+++ b/r5-java/run.sh
@@ -22,8 +22,8 @@ set -euo pipefail
 #   --demo   only compute Bank + TCR, transit only (quick test)
 
 # --- Defaults ---
-THREADS=16
-HEAP=16g
+THREADS=12
+HEAP=24g
 NETWORK_DIR=property-data/r5-network
 OUTPUT_BASE=property-data/travel-times
 R5_DIR=r5-java