diff --git a/install_software.sh b/install_software.sh
index b5b64fc..8c03bb8 100755
--- a/install_software.sh
+++ b/install_software.sh
@@ -1,8 +1,6 @@
 #!/bin/bash
-sudo add-apt-repository ppa:ubuntuhandbook1/ffmpeg6 -y
 sudo nala update
 sudo nala install -y \
-ffmpeg                         `# for video recording` \
 mpv                            `# for video playing` \
 sxiv                           `# for pictures` \
 strace                         `# for tracing` \
@@ -14,6 +12,21 @@ do
   sudo usermod -a -G $group $USER
 done
 
+# install ffmpeg with nvidia
+if ! command -v ffmpeg &> /dev/null
+then	
+  git clone --depth 1 https://git.ffmpeg.org/ffmpeg.git ffmpeg/
+  git clone --depth 1 https://git.videolan.org/git/ffmpeg/nv-codec-headers.git
+  cd nv-codec-headers && sudo make install && cd -
+  sudo nala install -y build-essential yasm cmake libtool libc6 libc6-dev unzip wget libnuma1 libnuma-dev libasound2-dev
+  cd ffmpeg
+  ./configure --enable-nonfree --enable-cuda-nvcc --enable-libnpp --enable-libxcb --enable-indev=alsa --enable-outdev=alsa --extra-cflags=-I/usr/lib/cuda/include --extra-ldflags=-L/usr/lib/cuda/lib64 --disable-static --enable-shared
+  make -j 8
+  sudo make install
+  cd -
+rm -rf ffmpeg nv-codec-headers
+fi
+
 # install pet
 if ! command -v pet &> /dev/null
 then	
diff --git a/install_ubuntu.sh b/install_ubuntu.sh
index c24b881..553e5dd 100755
--- a/install_ubuntu.sh
+++ b/install_ubuntu.sh
@@ -34,7 +34,6 @@ pulseaudio                   `# for sound` \
 alsa-base                    `# for sound` \
 pavucontrol                  `# for audio control` \
 pasystray                    `# for audio control` \
-libnvidia-compute-545        `# for mpv + nvidia` \
 iputils-ping                 `# ping etc.` \
 xfe                          `# classic file manager` \
 surf                         `# suckless lightweight browser` \
@@ -44,7 +43,10 @@ psmisc                       `# pstree etc.` \
 slack \
 firefox \
 python3 \
-python3-venv
+python3-venv \
+libnvidia-compute-545        `# for mpv + nvidia` \
+nvidia-driver-545            `# nvidia driver` \
+nvidia-cuda-toolkit          `# cuda driver`
 
 # install telegram
 if [ ! -d /opt/Telegram ]
diff --git a/record_screen.sh b/record_screen.sh
index 1a6c198..ebc1663 100755
--- a/record_screen.sh
+++ b/record_screen.sh
@@ -1,7 +1,9 @@
 #!/bin/bash
-ffmpeg \
--f x11grab -framerate 30 -video_size 1920x1080 -i :0 `# this is screen` \
--f v4l2 -framerate 30 -video_size 640x480 -i /dev/video0 `# this is camera` \
--f alsa -i default `# this is audio` \
+export LD_LIBRARY_PATH=/usr/local/lib 
+ffmpeg -hwaccel cuda -hwaccel_output_format cuda     `# we need nvidia acceleration because of low fps without it` \
+-f x11grab -r 30 -video_size 1920x1080 -i :0         `# this is screen` \
+-f v4l2 -r 30 -video_size 640x480 -i /dev/video0     `# this is camera` \
+-f alsa -i default                                   `# this is audio. Why not pulse? Nvidia?` \
+-c:v h264_nvenc                                      `# this is video codec` \
 -filter_complex "[0][1]overlay=main_w-overlay_w-2:main_h-overlay_h-2[v]" -map [v] -map 2 `# this is for placing camera in bottom right corner. IDK how it works` \
-video.mp4 # ouput file
+video.mp4 # output file