diff --git a/dbms/src/Interpreters/Settings.h b/dbms/src/Interpreters/Settings.h
index 354c03a9411..6442f9c8dd6 100644
--- a/dbms/src/Interpreters/Settings.h
+++ b/dbms/src/Interpreters/Settings.h
@@ -317,8 +317,6 @@ struct Settings
                                                                                                                                                                                                                                         \
     M(SettingDouble, dt_page_gc_threshold, 0.5, "Max valid rate of deciding to do a GC in PageStorage")                                                                                                                                 \
     M(SettingBool, dt_enable_read_thread, false, "Enable storage read thread or not")                                                                                                                                                   \
-    M(SettingDouble, dt_block_slots_scale, 1.0, "Block slots limit of a read request")                                                                                                                                                  \
-    M(SettingDouble, dt_active_segments_scale, 1.0, "Acitve segments limit of a read request")                                                                                                                                          \
                                                                                                                                                                                                                                         \
     M(SettingChecksumAlgorithm, dt_checksum_algorithm, ChecksumAlgo::XXH3, "Checksum algorithm for delta tree stable storage")                                                                                                          \
     M(SettingCompressionMethod, dt_compression_method, CompressionMethod::LZ4, "The method of data compression when writing.")                                                                                                          \
diff --git a/dbms/src/Storages/DeltaMerge/SegmentReadTaskPool.cpp b/dbms/src/Storages/DeltaMerge/SegmentReadTaskPool.cpp
index 80ff8487c21..88dc0742c89 100644
--- a/dbms/src/Storages/DeltaMerge/SegmentReadTaskPool.cpp
+++ b/dbms/src/Storages/DeltaMerge/SegmentReadTaskPool.cpp
@@ -222,8 +222,7 @@ int64_t SegmentReadTaskPool::decreaseUnorderedInputStreamRefCount()
 
 int64_t SegmentReadTaskPool::getFreeBlockSlots() const
 {
-    double block_slots_scale = dm_context->db_context.getSettingsRef().dt_block_slots_scale;
-    auto block_slots = static_cast<int64_t>(std::ceil(unordered_input_stream_ref_count.load(std::memory_order_relaxed) * block_slots_scale));
+    auto block_slots = unordered_input_stream_ref_count.load(std::memory_order_relaxed);
     if (block_slots < 3)
     {
         block_slots = 3;
@@ -233,8 +232,7 @@ int64_t SegmentReadTaskPool::getFreeBlockSlots() const
 
 int64_t SegmentReadTaskPool::getFreeActiveSegmentCountUnlock()
 {
-    double active_segments_scale = dm_context->db_context.getSettingsRef().dt_active_segments_scale;
-    auto active_segment_limit = static_cast<int64_t>(std::ceil(unordered_input_stream_ref_count.load(std::memory_order_relaxed) * active_segments_scale));
+    auto active_segment_limit = unordered_input_stream_ref_count.load(std::memory_order_relaxed);
     if (active_segment_limit < 2)
     {
         active_segment_limit = 2;