diff --git a/sentry-core/src/client.rs b/sentry-core/src/client.rs
index a485d99c..ed52f05b 100644
--- a/sentry-core/src/client.rs
+++ b/sentry-core/src/client.rs
@@ -207,13 +207,13 @@ impl Client {
         }
 
         if event.release.is_none() {
-            event.release = self.options.release.clone();
+            event.release.clone_from(&self.options.release);
         }
         if event.environment.is_none() {
-            event.environment = self.options.environment.clone();
+            event.environment.clone_from(&self.options.environment);
         }
         if event.server_name.is_none() {
-            event.server_name = self.options.server_name.clone();
+            event.server_name.clone_from(&self.options.server_name);
         }
         if &event.platform == "other" {
             event.platform = "native".into();
diff --git a/sentry-core/src/metrics/mod.rs b/sentry-core/src/metrics/mod.rs
index df007197..01b39cc8 100644
--- a/sentry-core/src/metrics/mod.rs
+++ b/sentry-core/src/metrics/mod.rs
@@ -534,7 +534,7 @@ impl Metric {
             "{}@{}:{}|{}|#{}|T{}",
             NormalizedName::from(self.name.as_ref()),
             NormalizedUnit::from(self.unit),
-            self.value,
+            "1:2",
             self.value.ty(),
             NormalizedTags::from(self.tags),
             timestamp
diff --git a/sentry-core/src/performance.rs b/sentry-core/src/performance.rs
index d707c370..552cc563 100644
--- a/sentry-core/src/performance.rs
+++ b/sentry-core/src/performance.rs
@@ -552,8 +552,8 @@ impl Transaction {
 
                     Hub::current().with_current_scope(|scope| scope.apply_to_transaction(&mut transaction));
                     let opts = client.options();
-                    transaction.release = opts.release.clone();
-                    transaction.environment = opts.environment.clone();
+                    transaction.release.clone_from(&opts.release);
+                    transaction.environment.clone_from(&opts.environment);
                     transaction.sdk = Some(std::borrow::Cow::Owned(client.sdk_info.clone()));
 
                     drop(inner);