diff --git a/alfis.toml b/alfis.toml
index 9de947b..183c2e5 100644
--- a/alfis.toml
+++ b/alfis.toml
@@ -21,7 +21,7 @@ yggdrasil_only = false
 # Your DNS resolver will be listening on this address and port (Usual port is 53)
 listen = "127.0.0.1:53"
 # How many threads to spawn by DNS server
-threads = 50
+threads = 10
 # AdGuard DNS servers to filter ads and trackers
 forwarders = ["https://dns.adguard.com/dns-query"]
 #forwarders = ["94.140.14.14:53", "94.140.15.15:53"]
diff --git a/src/blockchain/block.rs b/src/blockchain/block.rs
index 4efde12..567282a 100644
--- a/src/blockchain/block.rs
+++ b/src/blockchain/block.rs
@@ -98,6 +98,10 @@ impl Block {
             return true;
         }
 
+        if my_diff == it_diff && self.nonce != other.nonce {
+            return self.nonce < other.nonce;
+        }
+
         false
     }
 }
\ No newline at end of file
diff --git a/src/dns/client.rs b/src/dns/client.rs
index fffd893..b4bf267 100644
--- a/src/dns/client.rs
+++ b/src/dns/client.rs
@@ -406,7 +406,7 @@ impl HttpsDnsClient {
         let agent = ureq::AgentBuilder::new()
             .user_agent(&client_name)
             .timeout(std::time::Duration::from_secs(5))
-            .max_idle_connections_per_host(8)
+            .max_idle_connections_per_host(2)
             .max_idle_connections(16)
             .resolver(move |addr: &str| {
                 let addr = match addr.find(':') {
diff --git a/src/web_ui.rs b/src/web_ui.rs
index 056346b..be70844 100644
--- a/src/web_ui.rs
+++ b/src/web_ui.rs
@@ -442,7 +442,7 @@ fn action_create_domain(context: Arc<Mutex<Context>>, miner: Arc<Mutex<Miner>>,
     };
     match context.chain.can_mine_domain(context.chain.get_height(), &name, &pub_key) {
         MineResult::Fine => {
-            std::mem::drop(context);
+            drop(context);
             create_domain(c, miner, CLASS_DOMAIN, &name, data, DOMAIN_DIFFICULTY, &keystore, signing, encryption, renewal);
             let _ = web_view.eval("domainMiningStarted();");
             event_info(web_view, &format!("Mining of domain \\'{}\\' has started", &name));