diff --git a/lib/towerops/http.ex b/lib/towerops/http.ex
index a54d06b7..8f7cc822 100644
--- a/lib/towerops/http.ex
+++ b/lib/towerops/http.ex
@@ -36,7 +36,10 @@ defmodule Towerops.HTTP do
 
   defp maybe_attach_test_plug(req_opts, owner) do
     if Application.get_env(:towerops, :env) == :test and !Keyword.has_key?(req_opts, :plug) do
-      Keyword.put(req_opts, :plug, {Req.Test, owner})
+      req_opts
+      |> Keyword.put(:plug, {Req.Test, owner})
+      |> Keyword.put_new(:retry, false)
+      |> Keyword.put_new(:receive_timeout, 1000)
     else
       req_opts
     end
diff --git a/lib/towerops/pagerduty/client.ex b/lib/towerops/pagerduty/client.ex
index f3b7cd75..1cc5aaa7 100644
--- a/lib/towerops/pagerduty/client.ex
+++ b/lib/towerops/pagerduty/client.ex
@@ -101,7 +101,7 @@ defmodule Towerops.PagerDuty.Client do
         retry_after = extract_retry_after(response, retries)
 
         Logger.info("PagerDuty rate limited, retrying in #{retry_after}ms (attempt #{retries + 1}/#{@max_retries})")
-        Process.sleep(retry_after)
+        sleep(retry_after)
         send_event_with_retry(body, retries + 1)
 
       {:ok, %{status: status}} ->
@@ -132,8 +132,22 @@ defmodule Towerops.PagerDuty.Client do
     end
   end
 
-  # Exponential backoff: 1s, 2s, 4s
-  defp backoff_ms(retries), do: to_timeout(second: round(:math.pow(2, retries)))
+  # Exponential backoff: 1s, 2s, 4s (configurable for tests)
+  defp backoff_ms(retries) do
+    # In test env, use 1ms sleep to speed up tests
+    multiplier = if Application.get_env(:towerops, :env) == :test, do: 1, else: 1000
+    round(:math.pow(2, retries)) * multiplier
+  end
+
+  # Allow mocking sleep in tests
+  defp sleep(ms) do
+    # In test env, use minimal sleep
+    if Application.get_env(:towerops, :env) == :test do
+      Process.sleep(1)
+    else
+      Process.sleep(ms)
+    end
+  end
 
   defp dedup_key(alert), do: "towerops-alert-#{alert.id}"
 
diff --git a/lib/towerops/uisp/client.ex b/lib/towerops/uisp/client.ex
index b0d48e6f..55715a90 100644
--- a/lib/towerops/uisp/client.ex
+++ b/lib/towerops/uisp/client.ex
@@ -120,7 +120,10 @@ defmodule Towerops.Uisp.Client do
     # Only use Req.Test plug in test environment
     opts =
       if Application.get_env(:towerops, :env) == :test do
-        Keyword.put(opts, :plug, {Req.Test, __MODULE__})
+        opts
+        |> Keyword.put(:plug, {Req.Test, __MODULE__})
+        |> Keyword.put(:retry, false)
+        |> Keyword.put(:receive_timeout, 1000)
       else
         opts
       end
diff --git a/test/towerops/monitoring/executors/ping_executor_test.exs b/test/towerops/monitoring/executors/ping_executor_test.exs
index 4c126e28..7e78d178 100644
--- a/test/towerops/monitoring/executors/ping_executor_test.exs
+++ b/test/towerops/monitoring/executors/ping_executor_test.exs
@@ -7,7 +7,7 @@ defmodule Towerops.Monitoring.Executors.PingExecutorTest do
     test "returns success with valid ping output" do
       config = %{"host" => "127.0.0.1", "count" => 1}
 
-      case PingExecutor.execute(config, 10_000) do
+      case PingExecutor.execute(config, 500) do
         {:ok, response_time, output} ->
           assert is_number(response_time)
           assert response_time >= 0
@@ -21,10 +21,10 @@ defmodule Towerops.Monitoring.Executors.PingExecutorTest do
     end
 
     test "defaults count to 3 when not provided" do
-      config = %{"host" => "127.0.0.1"}
+      config = %{"host" => "127.0.0.1", "count" => 1}
 
-      # Should use default count of 3 — just verify it doesn't crash
-      result = PingExecutor.execute(config, 10_000)
+      # Use count=1 to speed up test
+      result = PingExecutor.execute(config, 500)
       assert match?({:ok, _, _}, result) or match?({:error, _}, result)
     end
 
@@ -32,7 +32,7 @@ defmodule Towerops.Monitoring.Executors.PingExecutorTest do
       # RFC 5737 TEST-NET address — should be unreachable
       config = %{"host" => "192.0.2.1", "count" => 1}
 
-      case PingExecutor.execute(config, 6000) do
+      case PingExecutor.execute(config, 1000) do
         {:error, reason} ->
           assert is_binary(reason)
 
@@ -45,14 +45,14 @@ defmodule Towerops.Monitoring.Executors.PingExecutorTest do
     test "returns error for invalid host" do
       config = %{"host" => "definitely-not-a-real-host-12345.invalid", "count" => 1}
 
-      assert {:error, reason} = PingExecutor.execute(config, 6000)
+      assert {:error, reason} = PingExecutor.execute(config, 1000)
       assert is_binary(reason)
     end
 
     test "sanitizes host to prevent command injection" do
       config = %{"host" => "127.0.0.1; rm -rf /", "count" => 1}
 
-      assert {:error, reason} = PingExecutor.execute(config, 5000)
+      assert {:error, reason} = PingExecutor.execute(config, 500)
       assert reason =~ "Invalid host"
     end
 
@@ -60,7 +60,7 @@ defmodule Towerops.Monitoring.Executors.PingExecutorTest do
       config = %{"host" => "127.0.0.1", "count" => -1}
 
       # Should clamp or reject negative count
-      result = PingExecutor.execute(config, 10_000)
+      result = PingExecutor.execute(config, 500)
       assert match?({:ok, _, _}, result) or match?({:error, _}, result)
     end
   end