diff --git a/iso/overlay/usr/local/bin/bee-john-gpu-stress b/iso/overlay/usr/local/bin/bee-john-gpu-stress
index 3dc7d25..8010875 100644
--- a/iso/overlay/usr/local/bin/bee-john-gpu-stress
+++ b/iso/overlay/usr/local/bin/bee-john-gpu-stress
@@ -191,7 +191,10 @@ CHOSEN_FORMAT=$(choose_format) || {
 
 echo "format=${CHOSEN_FORMAT}"
 PIDS=""
+_first=1
 for opencl_id in $(echo "${JOHN_DEVICES}" | tr ',' ' '); do
+    [ "${_first}" = "1" ] || sleep 3
+    _first=0
     ./john --test="${SECONDS}" --format="${CHOSEN_FORMAT}" --devices="${opencl_id}" &
     PIDS="${PIDS} $!"
 done