allow more blocks per transfer whilst being strict on stallers

src/net_processing.cpp

@@ -94,9 +94,9 @@ static constexpr std::chrono::microseconds GETDATA_TX_INTERVAL{std::chrono::seco
 /** Limit to avoid sending big packets. Not used in processing incoming GETDATA for compatibility */
 static const unsigned int MAX_GETDATA_SZ = 1000;
 /** Number of blocks that can be requested at any given time from a single peer. */
-static const int MAX_BLOCKS_IN_TRANSIT_PER_PEER = 16;
+static const int MAX_BLOCKS_IN_TRANSIT_PER_PEER = 768;
 /** Time during which a peer must stall block download progress before being disconnected. */
-static constexpr auto BLOCK_STALLING_TIMEOUT = 2s;
+static constexpr auto BLOCK_STALLING_TIMEOUT = 1s;
 /** Number of headers sent in one getheaders result. We rely on the assumption that if a peer sends
  *  less than this number, we reached its tip. Changing this value is a protocol upgrade. */
 static const unsigned int MAX_HEADERS_RESULTS = 2000;