diff --git a/portage/make.conf b/portage/make.conf
index ed04d02..17c7584 100644
--- a/portage/make.conf
+++ b/portage/make.conf
@@ -24,8 +24,8 @@ C_SEC="-fPIE -fPIC -fstack-protector-all -fstack-clash-protection -D_FORTIFY_SOU
 LD_SEC="-Wl,-pie -Wl,--strip-all -Wl,-z,defs -Wl,-z,now -Wl,-z,relro"
 
 ## Compiler flags.
-CFLAGS="-march=znver1 -O2 -pipe -flto=full -U__gnu_linux__ ${C_SEC}"
-CXXFLAGS="-march=znver1 -O2 -pipe -flto=full ${C_SEC}"
+CFLAGS="-march=znver3 -O2 -pipe -flto=thin -flto-jobs=4 -U__gnu_linux__ ${C_SEC}"
+CXXFLAGS="-march=znver3 -O2 -pipe -flto=thin -flto-jobs=4 ${C_SEC}"
 
 ## Linker flags.
 LDFLAGS="-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind ${LD_SEC}"
@@ -65,3 +65,4 @@ GENTOO_MIRRORS="https://mirror.init7.net/gentoo/"
 ## Emerge.
 EMERGE_DEFAULT_OPTS="--ask --verbose"
 FEATURES="buildpkg"
+MAKEOPTS="-j4"