2 files changed, 11 insertions, 3 deletions
diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp
index ac2d3023a..046b0eca0 100644
--- a/src/cryptonote_core/cryptonote_core.cpp
+++ b/src/cryptonote_core/cryptonote_core.cpp
@@ -421,8 +421,6 @@ namespace cryptonote
     CHECK_AND_ASSERT_MES(r, false, "Failed to initialize blockchain storage");
 
     block_sync_size = command_line::get_arg(vm, command_line::arg_block_sync_size);
-    if (block_sync_size == 0)
-      block_sync_size = BLOCKS_SYNCHRONIZING_DEFAULT_COUNT;
 
     MGINFO("Loading checkpoints");
 
@@ -788,6 +786,16 @@ namespace cryptonote
     return true;
   }
   //-----------------------------------------------------------------------------------------------
+  size_t core::get_block_sync_size(uint64_t height) const
+  {
+    static const uint64_t quick_height = m_testnet ? 801219 : 1220516;
+    if (block_sync_size > 0)
+      return block_sync_size;
+    if (height >= quick_height)
+      return BLOCKS_SYNCHRONIZING_DEFAULT_COUNT;
+    return BLOCKS_SYNCHRONIZING_DEFAULT_COUNT_PRE_V4;
+  }
+  //-----------------------------------------------------------------------------------------------
   std::pair<uint64_t, uint64_t> core::get_coinbase_tx_sum(const uint64_t start_offset, const size_t count)
   {
     uint64_t emission_amount = 0;
diff --git a/src/cryptonote_core/cryptonote_core.h b/src/cryptonote_core/cryptonote_core.h
index 63d3cd16d..982d67169 100644
--- a/src/cryptonote_core/cryptonote_core.h
+++ b/src/cryptonote_core/cryptonote_core.h
@@ -691,7 +691,7 @@ namespace cryptonote
       *
       * @return the number of blocks to sync in one go
       */
-     size_t get_block_sync_size() const { return block_sync_size; }
+     size_t get_block_sync_size(uint64_t height) const;
 
      /**
       * @brief get the sum of coinbase tx amounts between blocks