diff --git a/lib/CPUs/MIPS/syn/ise101/project/mips_top.xst b/lib/CPUs/MIPS/syn/ise101/project/mips_top.xst
index e04a7b5..02ce68f 100644
--- a/lib/CPUs/MIPS/syn/ise101/project/mips_top.xst
+++ b/lib/CPUs/MIPS/syn/ise101/project/mips_top.xst
@@ -8,7 +8,7 @@ run
 -p xc4vsx35-10-ff668
 -top mips_top
 -opt_mode Speed
--opt_level 1
+-opt_level 2
 -power NO
 -uc "./project/mips_top.xcf"
 -iuc NO