diff --git a/meta-witherspoon/recipes-phosphor/dbus/phosphor-mapper.bbappend b/meta-witherspoon/recipes-phosphor/dbus/phosphor-mapper.bbappend
new file mode 100644
index 0000000..668ee93
--- /dev/null
+++ b/meta-witherspoon/recipes-phosphor/dbus/phosphor-mapper.bbappend
@@ -0,0 +1,7 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+
+MAPPER_SVC = "xyz.openbmc_project.ObjectMapper.service"
+
+MAPPER_DROPIN_DIR = "${MAPPER_SVC}.d"
+
+SYSTEMD_OVERRIDE_${PN} += "mapper-nice.conf:${MAPPER_DROPIN_DIR}/mapper-nice.conf"
diff --git a/meta-witherspoon/recipes-phosphor/dbus/phosphor-mapper/mapper-nice.conf b/meta-witherspoon/recipes-phosphor/dbus/phosphor-mapper/mapper-nice.conf
new file mode 100644
index 0000000..5464cb5
--- /dev/null
+++ b/meta-witherspoon/recipes-phosphor/dbus/phosphor-mapper/mapper-nice.conf
@@ -0,0 +1,2 @@
+[Service]
+Nice=-5
\ No newline at end of file