diff --git a/build.sh b/build.sh
index 5d806c2..91e83f1 100755
--- a/build.sh
+++ b/build.sh
@@ -15,6 +15,8 @@ install_dir=sysresccd
 work_dir=work
 out_dir=out
 gpg_key=
+sfs_comp="xz"
+sfs_opts="-Xbcj x86 -b 512k -Xdict-size 512k"
 
 verbose=""
 
@@ -206,7 +208,7 @@ make_efiboot() {
 make_prepare() {
     cp -a -l -f ${work_dir}/x86_64/airootfs ${work_dir}
     mkarchiso ${verbose} -w "${work_dir}" -D "${install_dir}" pkglist
-    mkarchiso ${verbose} -w "${work_dir}" -D "${install_dir}" ${gpg_key:+-g ${gpg_key}} prepare
+    mkarchiso ${verbose} -w "${work_dir}" -D "${install_dir}" ${gpg_key:+-g ${gpg_key}} -c ${sfs_comp} -t "${sfs_opts}" prepare
     rm -rf ${work_dir}/airootfs
     # rm -rf ${work_dir}/x86_64/airootfs (if low space, this helps)
 }
diff --git a/patches/archiso-squashfs-options.patch b/patches/archiso-squashfs-options.patch
new file mode 100644
index 0000000..959a3b0
--- /dev/null
+++ b/patches/archiso-squashfs-options.patch
@@ -0,0 +1,62 @@
+diff --git a/archiso/mkarchiso b/archiso/mkarchiso
+index 567a5af..ed3f2c1 100755
+--- a/archiso/mkarchiso
++++ b/archiso/mkarchiso
+@@ -18,6 +18,7 @@ work_dir="work"
+ out_dir="out"
+ sfs_mode="sfs"
+ sfs_comp="xz"
++sfs_opts=""
+ gpg_key=
+ 
+ # Show an INFO message
+@@ -95,6 +96,8 @@ _usage ()
+     echo "                     Default: ${sfs_mode}"
+     echo "    -c <comp_type>   Set SquashFS compression type (gzip, lzma, lzo, xz, zstd)"
+     echo "                     Default: '${sfs_comp}'"
++    echo "    -t <sfs_opts>    Set additional SquashFS options"
++    echo "                     Default: ''"
+     echo "    -v               Enable verbose output"
+     echo "    -h               This message"
+     echo " commands:"
+@@ -223,9 +226,9 @@ _mkairootfs_img () {
+     mkdir -p "${work_dir}/iso/${install_dir}/${arch}"
+     _msg_info "Creating SquashFS image, this may take some time..."
+     if [[ "${quiet}" = "y" ]]; then
+-        mksquashfs "${work_dir}/airootfs.img" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend -comp "${sfs_comp}" -no-progress &> /dev/null
++        mksquashfs "${work_dir}/airootfs.img" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend -comp "${sfs_comp}" ${sfs_opts} -no-progress &> /dev/null
+     else
+-        mksquashfs "${work_dir}/airootfs.img" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend -comp "${sfs_comp}" -no-progress
++        mksquashfs "${work_dir}/airootfs.img" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend -comp "${sfs_comp}" ${sfs_opts} -no-progress
+     fi
+     _msg_info "Done!"
+     rm ${work_dir}/airootfs.img
+@@ -240,9 +243,9 @@ _mkairootfs_sfs () {
+     mkdir -p "${work_dir}/iso/${install_dir}/${arch}"
+     _msg_info "Creating SquashFS image, this may take some time..."
+     if [[ "${quiet}" = "y" ]]; then
+-        mksquashfs "${work_dir}/airootfs" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend -comp "${sfs_comp}" -no-progress &> /dev/null
++        mksquashfs "${work_dir}/airootfs" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend -comp "${sfs_comp}" ${sfs_opts} -no-progress &> /dev/null
+     else
+-        mksquashfs "${work_dir}/airootfs" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend -comp "${sfs_comp}" -no-progress
++        mksquashfs "${work_dir}/airootfs" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend -comp "${sfs_comp}" ${sfs_opts} -no-progress
+     fi
+     _msg_info "Done!"
+ }
+@@ -369,7 +372,7 @@ fi
+ 
+ umask 0022
+ 
+-while getopts 'p:r:C:L:P:A:D:w:o:s:c:g:vh' arg; do
++while getopts 'p:r:C:L:P:A:D:w:o:s:c:t:g:vh' arg; do
+     case "${arg}" in
+         p) pkg_list="${pkg_list} ${OPTARG}" ;;
+         r) run_cmd="${OPTARG}" ;;
+@@ -382,6 +385,7 @@ while getopts 'p:r:C:L:P:A:D:w:o:s:c:g:vh' arg; do
+         o) out_dir="${OPTARG}" ;;
+         s) sfs_mode="${OPTARG}" ;;
+         c) sfs_comp="${OPTARG}" ;;
++        t) sfs_opts="${OPTARG}" ;;
+         g) gpg_key="${OPTARG}" ;;
+         v) quiet="n" ;;
+         h|?) _usage 0 ;;