diff --git a/Experiments/Experiments/DefaultFeatureFlagService.swift b/Experiments/Experiments/DefaultFeatureFlagService.swift
index fa197cd8e41..ccdb4c5c1ce 100644
--- a/Experiments/Experiments/DefaultFeatureFlagService.swift
+++ b/Experiments/Experiments/DefaultFeatureFlagService.swift
@@ -49,8 +49,8 @@ public struct DefaultFeatureFlagService: FeatureFlagService {
                 .performanceMonitoringNetworking,
                 .performanceMonitoringViewController,
                 .performanceMonitoringUserInteraction:
-            // Disabled by default to avoid costs spikes, unless in internal testing builds.
-            return buildConfig == .alpha
+            // Disabled for development builds.
+            return buildConfig == .alpha || buildConfig == .appStore
         case .tapToPayOnIPhone:
             // It is not possible to get the TTPoI entitlement for an enterprise certificate,
             // so we should not enable this for alpha builds.
diff --git a/WooCommerce/Classes/Tools/Logging/WooCrashLoggingStack.swift b/WooCommerce/Classes/Tools/Logging/WooCrashLoggingStack.swift
index 15c3a0b5319..fa044f6bc33 100644
--- a/WooCommerce/Classes/Tools/Logging/WooCrashLoggingStack.swift
+++ b/WooCommerce/Classes/Tools/Logging/WooCrashLoggingStack.swift
@@ -146,7 +146,7 @@ class WCCrashLoggingDataProvider: CrashLoggingDataProvider {
         return .enabled(
             .init(
                 // FIXME: Is there a way to control this via feature flags?
-                sampler: { 0.1 },
+                sampler: { 0.01 },
                 trackCoreData: featureFlagService.isFeatureFlagEnabled(.performanceMonitoringCoreData),
                 trackFileIO: featureFlagService.isFeatureFlagEnabled(.performanceMonitoringFileIO),
                 trackNetwork: featureFlagService.isFeatureFlagEnabled(.performanceMonitoringNetworking),