diff --git a/Cargo.toml b/Cargo.toml
index ceacc0e..74a9be1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Magnus Ulimoen <flymagnus@gmail.com>"]
 edition = "2018"
 
 [lib]
-crate-type = ["cdylib", "rlib"]
+crate-type = ["cdylib"]
 
 [features]
 default = ["console_error_panic_hook", "wee_alloc"]
@@ -17,5 +17,5 @@ wee_alloc = { version = "*", optional = true }
 ndarray = "0.12.1"
 
 [profile.release]
-opt-level = "s"
-lto = "full"
+opt-level = 3
+lto = "thin"