diff --git a/packaging/live-iso/files/usr/local/bin/tune-realtime b/packaging/live-iso/files/usr/local/bin/tune-realtime
deleted file mode 100755
index 9f6a0f025..000000000
--- a/packaging/live-iso/files/usr/local/bin/tune-realtime
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/bin/bash
-
-ARCH=$(rpm -q --qf "%{arch}\n" glibc)
-RELEASE=$(rpm -q --qf "%{version}\n" fedora-release)
-
-# Install Planet CCRMA repository which includes RT_PREEMPT patched kernels
-rpm -Uvh http://ccrma.stanford.edu/planetccrma/mirror/fedora/linux/planetccrma/${RELEASE}/${ARCH}/planetccrma-repo-1.1-3.fc${RELEASE}.ccrma.noarch.rpm
-
-
-dnf -y --refresh install \
-	tuned-utils \
-	tuned-profiles-realtime
-	kernel-rt \
-	kernel-rt-modules \
-	kernel-rt-modules-extra
-
-echo "isolated_cores=3-7" >> /etc/tuned/realtime-variables.conf
-
-tuned-adm profile realtime
diff --git a/tools/tune-realtime.sh b/tools/tune-realtime.sh
new file mode 100755
index 000000000..e22c44947
--- /dev/null
+++ b/tools/tune-realtime.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+dnf -y --refresh install \
+	tuned-utils \
+	tuned-profiles-realtime
+
+# Isolate half of the available cores by default
+if [ -z "${ISOLATED_CORES}" ]; then
+	PROC=$(nproc)
+	ISOLATED_CORES=
+	if ((PROC > 4)); then
+		ISOLATED_CORES+=$(seq -s, $((PROC/2)) $((PROC-1)))
+	fi
+fi
+echo isolated_cores=${ISOLATED_CORES} >> /etc/tuned/realtime-variables.conf
+
+# Enable dynamic preemption
+grubby --update-kernel=ALL --remove-args="preempt=full"
+
+# Select real-time tuned profile
+tuned-adm profile realtime