diff --git a/waku/v2/waku_rln_relay/group_manager/group_manager_base.nim b/waku/v2/waku_rln_relay/group_manager/group_manager_base.nim
index 545b8ae29..31878632d 100644
--- a/waku/v2/waku_rln_relay/group_manager/group_manager_base.nim
+++ b/waku/v2/waku_rln_relay/group_manager/group_manager_base.nim
@@ -1,5 +1,6 @@
 import
   ../protocol_types,
+  ../protocol_metrics,
   ../constants,
   ../rln
 import
@@ -13,6 +14,7 @@ export
   chronos,
   results,
   protocol_types,
+  protocol_metrics,
   deques
 
 # This module contains the GroupManager interface
@@ -148,11 +150,12 @@ method generateProof*(g: GroupManager,
     return err("identity credentials are not set")
   if g.membershipIndex.isNone():
     return err("membership index is not set")
-  let proofGenRes = proofGen(rlnInstance = g.rlnInstance,
-                             data = data,
-                             memKeys = g.idCredentials.get(),
-                             memIndex = g.membershipIndex.get(),
-                             epoch = epoch)
+  waku_rln_proof_generation_duration_seconds.nanosecondTime:
+    let proofGenRes = proofGen(rlnInstance = g.rlnInstance,
+                              data = data,
+                              memKeys = g.idCredentials.get(),
+                              memIndex = g.membershipIndex.get(),
+                              epoch = epoch)
   if proofGenRes.isErr():
     return err("proof generation failed: " & $proofGenRes.error())
   return ok(proofGenRes.value())
diff --git a/waku/v2/waku_rln_relay/group_manager/on_chain/group_manager.nim b/waku/v2/waku_rln_relay/group_manager/on_chain/group_manager.nim
index 0ac60ec06..1436363b5 100644
--- a/waku/v2/waku_rln_relay/group_manager/on_chain/group_manager.nim
+++ b/waku/v2/waku_rln_relay/group_manager/on_chain/group_manager.nim
@@ -75,7 +75,8 @@ method atomicBatch*(g: OnchainGroupManager,
   initializedGuard(g)
 
   let startIndex = g.latestIndex
-  let operationSuccess = g.rlnInstance.atomicWrite(some(startIndex), idCommitments, toRemoveIndices)
+  waku_rln_membership_insertion_duration_seconds.nanosecondTime:
+    let operationSuccess = g.rlnInstance.atomicWrite(some(startIndex), idCommitments, toRemoveIndices)
   if not operationSuccess:
     raise newException(ValueError, "atomic batch operation failed")
 
@@ -371,7 +372,8 @@ method startGroupSync*(g: OnchainGroupManager): Future[void] {.async.} =
     g.idCredentials = some(idCredential)
 
     debug "registering commitment on contract"
-    await g.register(idCredential)
+    waku_rln_registration_duration_seconds.nanosecondTime:
+      await g.register(idCredential)
     if g.registrationHandler.isSome():
       # We need to callback with the tx hash
       let handler = g.registrationHandler.get()
@@ -427,11 +429,12 @@ method init*(g: OnchainGroupManager): Future[void] {.async.} =
   g.membershipFee = some(membershipFee)
 
   if g.keystorePath.isSome() and g.keystorePassword.isSome():
-    let parsedCredsRes = getMembershipCredentials(path = g.keystorePath.get(),
-                                                  password = g.keystorePassword.get(),
-                                                  filterMembershipContracts = @[MembershipContract(chainId: $chainId,
-                                                  address: g.ethContractAddress)],
-                                                  appInfo = RLNAppInfo)
+    waku_rln_membership_credentials_import_duration_seconds.nanosecondTime:
+      let parsedCredsRes = getMembershipCredentials(path = g.keystorePath.get(),
+                                                    password = g.keystorePassword.get(),
+                                                    filterMembershipContracts = @[MembershipContract(chainId: $chainId,
+                                                    address: g.ethContractAddress)],
+                                                    appInfo = RLNAppInfo)
     if parsedCredsRes.isErr():
       raise newException(ValueError, "could not parse the keystore: " & $parsedCredsRes.error())
     let parsedCreds = parsedCredsRes.get()