diff --git a/Cargo.toml b/Cargo.toml
index 484c1fe..31ce4ff 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,4 +2,10 @@
 resolver = "2"
 members = [
     "sierra-decompiler",
-]
\ No newline at end of file
+]
+
+[profile.dev]
+opt-level = 0
+
+[profile.release]
+opt-level = 3
diff --git a/lib/src/decompiler/decompiler.rs b/lib/src/decompiler/decompiler.rs
index 9db9426..e9814a2 100644
--- a/lib/src/decompiler/decompiler.rs
+++ b/lib/src/decompiler/decompiler.rs
@@ -630,6 +630,7 @@ impl<'a> Decompiler<'a> {
     }
 
     /// Generate a callgraph representation in DOT Format
+    #[inline]
     pub fn generate_callgraph(&mut self) -> String {
         process_callgraph(&self.functions)
     }
diff --git a/lib/src/decompiler/libfuncs_patterns.rs b/lib/src/decompiler/libfuncs_patterns.rs
index e8eddef..4bf2fac 100644
--- a/lib/src/decompiler/libfuncs_patterns.rs
+++ b/lib/src/decompiler/libfuncs_patterns.rs
@@ -55,7 +55,6 @@ lazy_static! {
     // Used to match and replace them in remote contracts
     pub static ref TYPE_ID_REGEX: Regex = Regex::new(r"(?<type_id>\[[0-9]+\])").unwrap();
 
-    // User-defined type ID
     // User defined types IDs are the 250 first bits of the id name Keccak hash
     // https://github.com/starkware-libs/cairo/blob/b29f639c2090822914f52db6696d71748a8b93a6/crates/cairo-lang-sierra/src/ids.rs#L118
     pub static ref USER_DEFINED_TYPE_ID_REGEX: Regex = Regex::new(r"ut@\[(?<type_id>[0-9]+)\]").unwrap();
diff --git a/lib/src/decompiler/utils.rs b/lib/src/decompiler/utils.rs
index a476316..46e46b8 100644
--- a/lib/src/decompiler/utils.rs
+++ b/lib/src/decompiler/utils.rs
@@ -6,6 +6,7 @@ use crate::decompiler::libfuncs_patterns::USER_DEFINED_TYPE_ID_REGEX;
 
 /// Convert an integer to it's string value or hex value
 /// Used to decode consts
+#[inline]
 pub fn decode_hex_bigint(bigint: &BigInt) -> Option<String> {
     // Convert the BigInt to a hexadecimal string
     let hex_string = format!("{:x}", bigint);