diff --git a/elastic/logs/README.md b/elastic/logs/README.md
index ca344519..2c9bc7d2 100644
--- a/elastic/logs/README.md
+++ b/elastic/logs/README.md
@@ -226,8 +226,9 @@ The following parameters are available:
 * `recovery_target` (required) - The target index or data stream for fetching shard changes via the recovery API.
 * `recovery_from_seq_no` (default: `0`) - The sequence number from which to start fetching translog operations.
 * `recovery_poll_timeout` (default: `1m`) - The maximum time to wait for additional translog operations before returning an empty result.
-* `recovery_max_batch_size` (default: `32MB`) - The maximum estimated size for the batch of translog operations to return.
-* `recovery_max_operations_count` (default: `1048576`) - The maximum number of translog operations to return in a single batch.
+* `recovery_small_max_batch_size` (default: `4MB`) - The maximum estimated size for the batch of translog operations to return.
+* `recovery_large_max_batch_size` (default: `32MB`) - The maximum estimated size for the batch of translog operations to return.
+* `recovery_max_operations_count` (default: `16777216`) - The maximum number of translog operations to return in a single batch.
 
 ### Data Download Parameters
 
diff --git a/elastic/logs/challenges/synthetic-source-recovery.json b/elastic/logs/challenges/synthetic-source-recovery.json
index 8f0013b9..7dc503fe 100644
--- a/elastic/logs/challenges/synthetic-source-recovery.json
+++ b/elastic/logs/challenges/synthetic-source-recovery.json
@@ -34,14 +34,30 @@
     {# serverless-shard-recovery-marker-start #}{%- if build_flavor != "serverless" -%}
     ,
     {
-      "name": "shard-recovery",
+      "name": "shard-recovery-small",
       "operation": {
         "operation-type": "raw-request",
         "path": {{ "/%s/ccr/shard_changes" | format(p_recovery_target) | tojson }},
         "method": "GET",
         "request-params": {
           "from_seq_no": {{ p_recovery_from_seq_no | tojson }},
-          "max_batch_size": {{ p_recovery_max_batch_size | tojson }},
+          "max_batch_size": {{ p_recovery_small_max_batch_size | tojson }},
+          "poll_timeout": {{ p_recovery_poll_timeout | tojson }},
+          "max_operations_count": {{ p_recovery_max_operations_count | tojson }}
+        }
+      },
+      "warmup-iterations": 10,
+      "iterations": 20
+    },
+    {
+      "name": "shard-recovery-large",
+      "operation": {
+        "operation-type": "raw-request",
+        "path": {{ "/%s/ccr/shard_changes" | format(p_recovery_target) | tojson }},
+        "method": "GET",
+        "request-params": {
+          "from_seq_no": {{ p_recovery_from_seq_no | tojson }},
+          "max_batch_size": {{ p_recovery_large_max_batch_size | tojson }},
           "poll_timeout": {{ p_recovery_poll_timeout | tojson }},
           "max_operations_count": {{ p_recovery_max_operations_count | tojson }}
         }
diff --git a/elastic/logs/track.json b/elastic/logs/track.json
index 699af93d..30791878 100644
--- a/elastic/logs/track.json
+++ b/elastic/logs/track.json
@@ -62,9 +62,10 @@
 
 {% set p_recovery_target = (recovery_target | default('logs-k8-application.log-default') ) %}
 {% set p_recovery_from_seq_no = (recovery_seq_no | default(0) ) %}
-{% set p_recovery_max_batch_size = (recovery_max_batch_size | default ("32MB") ) %}
+{% set p_recovery_small_max_batch_size = (recovery_small_max_batch_size | default ("512kB") ) %}
+{% set p_recovery_large_max_batch_size = (recovery_large_max_batch_size | default ("32MB") ) %}
 {% set p_recovery_poll_timeout = (recovery_poll_timeout | default("1m")) %}
-{% set p_recovery_max_operations_count = (recovery_max_operations_count | default(1048576)) %}
+{% set p_recovery_max_operations_count = (recovery_max_operations_count | default(16777216)) %}
 
 {% set p_worker_threads_enabled = (worker_threads_enabled | default(true))  %}
 
diff --git a/tsdb/README.md b/tsdb/README.md
index 8d7ee3fe..f088ae28 100644
--- a/tsdb/README.md
+++ b/tsdb/README.md
@@ -208,8 +208,9 @@ This track allows to overwrite the following parameters using `--track-params`:
 * `recovery_target` (required) - The target index or data stream for fetching shard changes via the recovery API.
 * `recovery_from_seq_no` (default: `0`) - The sequence number from which to start fetching translog operations.
 * `recovery_poll_timeout` (default: `1m`) - The maximum time to wait for additional translog operations before returning an empty result.
-* `recovery_max_batch_size` (default: `32MB`) - The maximum estimated size for the batch of translog operations to return.
-* `recovery_max_operations_count` (default: `1048576`) - The maximum number of translog operations to return in a single batch.
+* `recovery_small_max_batch_size` (default: `4MB`) - The maximum estimated size for the batch of translog operations to return.
+* `recovery_large_max_batch_size` (default: `32MB`) - The maximum estimated size for the batch of translog operations to return.
+* `recovery_max_operations_count` (default: `16777216`) - The maximum number of translog operations to return in a single batch.
 
 ### License
 
diff --git a/tsdb/challenges/synthetic-source-recovery.json b/tsdb/challenges/synthetic-source-recovery.json
index 926c8e8f..b280c795 100644
--- a/tsdb/challenges/synthetic-source-recovery.json
+++ b/tsdb/challenges/synthetic-source-recovery.json
@@ -45,14 +45,30 @@
     {# serverless-shard-recovery-marker-start #}{%- if build_flavor != "serverless" -%}
     ,
     {
-      "name": "shard-recovery",
+      "name": "shard-recovery-small",
       "operation": {
         "operation-type": "raw-request",
         "path": {{ "/%s/ccr/shard_changes" | format(p_recovery_target) | tojson }},
         "method": "GET",
         "request-params": {
           "from_seq_no": {{ p_recovery_from_seq_no | tojson }},
-          "max_batch_size": {{ p_recovery_max_batch_size | tojson }},
+          "max_batch_size": {{ p_recovery_small_max_batch_size | tojson }},
+          "poll_timeout": {{ p_recovery_poll_timeout | tojson }},
+          "max_operations_count": {{ p_recovery_max_operations_count | tojson }}
+        }
+      },
+      "warmup-iterations": 10,
+      "iterations": 20
+    },
+    {
+      "name": "shard-recovery-large",
+      "operation": {
+        "operation-type": "raw-request",
+        "path": {{ "/%s/ccr/shard_changes" | format(p_recovery_target) | tojson }},
+        "method": "GET",
+        "request-params": {
+          "from_seq_no": {{ p_recovery_from_seq_no | tojson }},
+          "max_batch_size": {{ p_recovery_large_max_batch_size | tojson }},
           "poll_timeout": {{ p_recovery_poll_timeout | tojson }},
           "max_operations_count": {{ p_recovery_max_operations_count | tojson }}
         }
diff --git a/tsdb/track.json b/tsdb/track.json
index 219f6ca1..7c3e8749 100644
--- a/tsdb/track.json
+++ b/tsdb/track.json
@@ -2,9 +2,10 @@
 
 {% set p_recovery_target = ( recovery_target | default('tsdb') ) %}
 {% set p_recovery_from_seq_no = (recovery_seq_no | default(0) ) %}
-{% set p_recovery_max_batch_size = (recovery_max_batch_size | default ("32MB") ) %}
+{% set p_recovery_small_max_batch_size = (recovery_small_max_batch_size | default ("512kB") ) %}
+{% set p_recovery_large_max_batch_size = (recovery_large_max_batch_size | default ("32MB") ) %}
 {% set p_recovery_poll_timeout = (recovery_poll_timeout | default("1m")) %}
-{% set p_recovery_max_operations_count = (recovery_max_operations_count | default(1048576)) %}
+{% set p_recovery_max_operations_count = (recovery_max_operations_count | default(16777216)) %}
 
 {
   "version": 2,