diff --git a/x11-wm/kwinft/Makefile b/x11-wm/kwinft/Makefile
index 4c84f53db734..7ff6452443dd 100644
--- a/x11-wm/kwinft/Makefile
+++ b/x11-wm/kwinft/Makefile
@@ -1,72 +1,72 @@
 PORTNAME=	kwinft
 DISTVERSIONPREFIX=	${PORTNAME}@
 DISTVERSION=	5.27.0
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	x11-wm wayland
 
 MAINTAINER=	jbeich@FreeBSD.org
 COMMENT=	Wayland compositor and X11 window manager
 WWW=		https://gitlab.com/kwinft/kwinft
 
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	evdev-proto>0:devel/evdev-proto
 LIB_DEPENDS=	libepoxy.so:graphics/libepoxy \
 		libwayland-server.so:graphics/wayland \
 		libWraplandServer.so:graphics/wrapland \
 		libfreetype.so:print/freetype2 \
 		libfontconfig.so:x11-fonts/fontconfig \
 		libwlroots.so:x11-toolkits/wlroots \
 		libinput.so:x11/libinput \
 		libxkbcommon.so:x11/libxkbcommon \
 		libxcb-cursor.so:x11/xcb-util-cursor \
 		libxcb-image.so:x11/xcb-util-image \
 		libxcb-keysyms.so:x11/xcb-util-keysyms \
 		libxcb-icccm.so:x11/xcb-util-wm
 TEST_DEPENDS=	${qt-testlib_PORT:T}>0:${qt-testlib_PORT}
 
 CONFLICTS_INSTALL=	plasma5-kwin # bin/kwin_wayland
 
 USES=		cmake:testing gl kde:5 pkgconfig python:run qt:5 shebangfix xorg
 USE_GITLAB=	yes
 USE_GL=		egl
 USE_KDE=	ecm:build auth config configwidgets \
 		coreaddons crash dbusaddons decoration globalaccel i18n \
 		idletime kcmutils kdeclarative kio kscreenlocker newstuff \
 		notifications package plasma-framework service \
 		widgetsaddons windowsystem xmlgui
 USE_LDCONFIG=	yes
 USE_QT=		qmake:build buildtools:build core dbus declarative gui \
 		multimedia:run quickcontrols2:run widgets x11extras
 USE_XORG=	pixman x11 xcb xi
 SHEBANG_FILES=	effect/effects/*.py kconf_update/*.py kconf_update/*.pl
 GL_COMMIT=	6d47e3aebd58ea1e7556c67e0f7870e874922f7c
 PLIST_SUB=	VERSION=${PORTVERSION}
 LDFLAGS+=	-Wl,--as-needed # GL, ICE/SM/Xext, glib, intl, Qt5*, KF5*
 
 OPTIONS_DEFINE=	BREEZE DOCS QA11Y
 OPTIONS_DEFAULT=BREEZE QA11Y
 
 BREEZE_DESC=		Default window decoration plugin
 BREEZE_USE=		KDE=breeze
 BREEZE_CMAKE_BOOL_OFF=	CMAKE_DISABLE_FIND_PACKAGE_Breeze
 
 DOCS_USE=		KDE=doctools:build
 DOCS_CMAKE_BOOL_OFF=	CMAKE_DISABLE_FIND_PACKAGE_KF5DocTools
 
 QA11Y_DESC=		Accessibility (focus tracking) for Zoom effect
 QA11Y_LIB_DEPENDS=	libqaccessibilityclient-qt5.so:accessibility/libqaccessibilityclient
 QA11Y_CMAKE_BOOL_OFF=	CMAKE_DISABLE_FIND_PACKAGE_QAccessibilityClient
 
 post-patch:
 # Convert nodes from linprocfs(5) to procfs(5)
 # XXX kwinft lacks https://invent.kde.org/plasma/kwin/-/commit/1bc7afe8aaa9
 	@${REINPLACE_CMD} -e '/proc/,+1s,/exe,/file,' \
 		${WRKSRC}/base/wayland/filtered_display.cpp \
 		${WRKSRC}/desktop/kde/service_utils.h
 # Generic nodes are not supported by procfs(5)
 	@${REINPLACE_CMD} -e '/mounts/s,/proc,/compat/linux&,' \
 		${WRKSRC}/debug/perf/ftrace_impl.cpp
 
 .include <bsd.port.mk>
diff --git a/x11-wm/kwinft/files/patch-main__wayland.cpp b/x11-wm/kwinft/files/patch-main__wayland.cpp
new file mode 100644
index 000000000000..df6a92432f05
--- /dev/null
+++ b/x11-wm/kwinft/files/patch-main__wayland.cpp
@@ -0,0 +1,36 @@
+- Emulate SCHED_RESET_ON_FORK via pthread_atfork
+- Switch to pthread_setschedparam as Linux sched_setscheduler
+  operates on threads contrary to POSIX
+
+--- main_wayland.cpp.orig	2023-02-17 14:50:58 UTC
++++ main_wayland.cpp
+@@ -58,7 +58,7 @@ along with this program.  If not, see <http://www.gnu.
+ #include <QDebug>
+ #include <QWindow>
+ 
+-#include <sched.h>
++#include <pthread.h>
+ #include <sys/resource.h>
+ 
+ #include <iostream>
+@@ -122,12 +122,17 @@ void gainRealTime()
+ namespace {
+ void gainRealTime()
+ {
+-#if HAVE_SCHED_RESET_ON_FORK
+     const int minPriority = sched_get_priority_min(SCHED_RR);
+     sched_param sp;
+     sp.sched_priority = minPriority;
+-    sched_setscheduler(0, SCHED_RR | SCHED_RESET_ON_FORK, &sp);
+-#endif
++    if (pthread_setschedparam(pthread_self(), SCHED_RR, &sp))
++        return;
++
++    pthread_atfork(NULL, NULL, []() {
++        sched_param sp;
++        sp.sched_priority = 0;
++        pthread_setschedparam(pthread_self(), SCHED_OTHER, &sp);
++    });
+ }
+ }
+ 
diff --git a/x11-wm/kwinft/pkg-message b/x11-wm/kwinft/pkg-message
index 68e3a0e9b0dd..969f9444a619 100644
--- a/x11-wm/kwinft/pkg-message
+++ b/x11-wm/kwinft/pkg-message
@@ -1,41 +1,48 @@
 [
 { type: install
   message: <<EOM
 Native Wayland on top of KMS console:
 
   $ export XDG_RUNTIME_DIR=$(mktemp -dt run)
   $ dbus-daemon --session --fork --address=unix:runtime=yes
   $ seatd-launch kwin_wayland
 
 Native X11 on top of Xorg:
 
   $ echo "exec dbus-run-session kwin_x11" >~/.xinitrc
   $ startx
 
 Nested under Wayland as Wayland window manager:
 
   $ kwin_wayland
 
 Nested under Wayland as X11 window manager:
 
   $ Xwayland :8 &
   $ DISPLAY=:8 kwin_x11
 
 Nested under X11 as Wayland window manager:
 
   $ cage kwin_wayland
 
 Nested under X11 as X11 window manager:
 
   $ Xephyr :8 &
   $ DISPLAY=:8 kwin_x11
 
 Replace KWin in Plasma Desktop:
 
   $ pkg set -n plasma5-kwin:kwinft
   $ pkg set -o x11-wm/plasma5-kwin:x11-wm/kwinft
   $ pkg upgrade -f kwinft
   $ pkg lock kwinft
+
+Improve Wayland responsiveness under high load:
+
+  $ sysrc kld_list+=mac_priority
+  $ service kld restart
+  $ pw groupmod realtime -m <user>
+  $ exit # log out to refresh group permissions
 EOM
 }
 ]