Only set flag3 if TSA makes it harder

src/pow.cpp

@@ -456,7 +456,8 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
             if ( zflags[0] == 0 && zawyflag == 0 && mult <= 1 )
             {
                 bnTarget = zawy_TSA_EMA(height,tipdiff,(bnTarget+ct[0])/arith_uint256(2),ts[0] - ts[1]);
-                zawyflag = 3;
+                if ( bnTarget < origtarget )
+                    zawyflag = 3;
             }
         }
         nbits = bnTarget.GetCompact();