diff --git a/Cargo.lock b/Cargo.lock
index 2aeba29c..482cd173 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1392,9 +1392,9 @@ dependencies = [
 
 [[package]]
 name = "drillx"
-version = "2.0.0"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c5fd3a8f11a6420d6efb1952c8c2e788627cb2c9e834537dc4b6bd036461646"
+checksum = "9f1b6097a8aeb360dc83cad60047b42cfabf54a56b81a75e254f5854211a7475"
 dependencies = [
  "equix",
  "serde",
@@ -2772,7 +2772,7 @@ dependencies = [
 
 [[package]]
 name = "ore-cli"
-version = "2.3.0"
+version = "2.3.1"
 dependencies = [
  "bincode",
  "bs58 0.5.1",
diff --git a/Cargo.toml b/Cargo.toml
index d908dc09..2a65a454 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ore-cli"
-version = "2.3.0"
+version = "2.3.1"
 edition = "2021"
 license = "Apache-2.0"
 description = "A command line interface for ORE cryptocurrency mining."
@@ -27,7 +27,7 @@ chrono = "0.4.38"
 clap = { version = "4.4.12", features = ["derive"] }
 colored = "2.0"
 core_affinity = "0.8.1" 
-drillx = "2.0.0"
+drillx = "2.1.0"
 futures = "0.3.30"
 indicatif = "0.17.8"
 num_cpus = "1.16.0"
@@ -56,3 +56,15 @@ serde = { version = "1.0", features = ["derive"] }
 # ore-api = { path = "../ore/api" }
 # ore-utils = { path = "../ore/utils" }
 
+[profile.release]
+opt-level = 3   # Optimize for binary size. You can use "3" for full optimizations if binary size isn't an issue.
+codegen-units = 1 # Better optimization with fewer codegen units
+lto = true        # Enable Link Time Optimization (LTO)
+debug = false     # Disable debug info to reduce binary size
+panic = 'abort'   # Reduces the binary size further by not including unwinding information
+rpath = false
+incremental = false
+overflow-checks = false
+
+[build]
+rustflags = ["-C", "target-cpu=native"]
\ No newline at end of file
diff --git a/src/mine.rs b/src/mine.rs
index 5c369e3e..2d0b2061 100644
--- a/src/mine.rs
+++ b/src/mine.rs
@@ -124,23 +124,24 @@ impl Miner {
                         let mut best_difficulty = 0;
                         let mut best_hash = Hash::default();
                         loop {
-                            // Create hash
-                            if let Ok(hx) = drillx::hash_with_memory(
+                            // Get hashes
+                            let hxs = drillx::hashes_with_memory(
                                 &mut memory,
                                 &proof.challenge,
                                 &nonce.to_le_bytes(),
-                            ) {
+                            );
+
+                            // Look for best difficulty score in all hashes
+                            for hx in hxs {
                                 let difficulty = hx.difficulty();
                                 if difficulty.gt(&best_difficulty) {
                                     best_nonce = nonce;
                                     best_difficulty = difficulty;
                                     best_hash = hx;
-                                    // {{ edit_1 }}
                                     if best_difficulty.gt(&*global_best_difficulty.read().unwrap())
                                     {
                                         *global_best_difficulty.write().unwrap() = best_difficulty;
                                     }
-                                    // {{ edit_1 }}
                                 }
                             }
 
diff --git a/src/send_and_confirm.rs b/src/send_and_confirm.rs
index 2c81ac33..2ac46cab 100644
--- a/src/send_and_confirm.rs
+++ b/src/send_and_confirm.rs
@@ -174,7 +174,7 @@ impl Miner {
 
                     // Confirm transaction
                     'confirm: for _ in 0..CONFIRM_RETRIES {
-                        std::thread::sleep(Duration::from_millis(CONFIRM_DELAY));
+                        tokio::time::sleep(Duration::from_millis(CONFIRM_DELAY)).await;
                         match client.get_signature_statuses(&[sig]).await {
                             Ok(signature_statuses) => {
                                 for status in signature_statuses.value {
@@ -264,7 +264,7 @@ impl Miner {
             }
 
             // Retry
-            std::thread::sleep(Duration::from_millis(GATEWAY_DELAY));
+            tokio::time::sleep(Duration::from_millis(GATEWAY_DELAY)).await;
             if attempts > GATEWAY_RETRIES {
                 log_error(&progress_bar, "Max retries", true);
                 return Err(ClientError {
diff --git a/src/utils.rs b/src/utils.rs
index 9326cc19..a932d2a7 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -50,7 +50,7 @@ pub async fn get_updated_proof_with_authority(
         if proof.last_hash_at.gt(&lash_hash_at) {
             return proof;
         }
-        std::thread::sleep(Duration::from_millis(1000));
+        tokio::time::sleep(Duration::from_millis(1_000)).await;
     }
 }