diff --git a/roadveh_cmd.c b/roadveh_cmd.c
index ced66d0078..ae70fc41db 100644
--- a/roadveh_cmd.c
+++ b/roadveh_cmd.c
@@ -993,7 +993,7 @@ static inline NPFFoundTargetData PerfNPFRouteToStationOrTile(TileIndex tile, Tra
 	void* perf = NpfBeginInterval();
 	NPFFoundTargetData ret = NPFRouteToStationOrTile(tile, trackdir, target, type, owner, railtypes);
 	int t = NpfEndInterval(perf);
-	DEBUG(yapf, 1)("[YAPF][NPFR] %d us - %d rounds - %d open - %d closed -- ", t, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
+	DEBUG(yapf, 4)("[YAPF][NPFR] %d us - %d rounds - %d open - %d closed -- ", t, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
 	return ret;
 }
 
diff --git a/ship_cmd.c b/ship_cmd.c
index 41a46693ab..4c41718660 100644
--- a/ship_cmd.c
+++ b/ship_cmd.c
@@ -526,7 +526,7 @@ static inline NPFFoundTargetData PerfNPFRouteToStationOrTile(TileIndex tile, Tra
 	void* perf = NpfBeginInterval();
 	NPFFoundTargetData ret = NPFRouteToStationOrTile(tile, trackdir, target, type, owner, railtypes);
 	int t = NpfEndInterval(perf);
-	DEBUG(yapf, 1)("[YAPF][NPFW] %d us - %d rounds - %d open - %d closed -- ", t, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
+	DEBUG(yapf, 4)("[YAPF][NPFW] %d us - %d rounds - %d open - %d closed -- ", t, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
 	return ret;
 }
 
diff --git a/train_cmd.c b/train_cmd.c
index 1d27c901d8..d8468da91d 100644
--- a/train_cmd.c
+++ b/train_cmd.c
@@ -2212,7 +2212,7 @@ static byte ChooseTrainTrack(Vehicle* v, TileIndex tile, DiagDirection enterdir,
 		}
 
 		time = NpfEndInterval(perf);
-		DEBUG(yapf, 1)("[YAPF][NPFT] %d us - %d rounds - %d open - %d closed -- ", time, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
+		DEBUG(yapf, 4)("[YAPF][NPFT] %d us - %d rounds - %d open - %d closed -- ", time, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
 	} else {
 		void* perf = NpfBeginInterval();
 		int time = 0;
@@ -2235,7 +2235,7 @@ static byte ChooseTrainTrack(Vehicle* v, TileIndex tile, DiagDirection enterdir,
 		}
 
 		time = NpfEndInterval(perf);
-		DEBUG(yapf, 1)("[YAPF][NTPT] %d us - %d rounds - %d open - %d closed -- ", time, 0, 0, 0);
+		DEBUG(yapf, 4)("[YAPF][NTPT] %d us - %d rounds - %d open - %d closed -- ", time, 0, 0, 0);
 	}
 
 #ifdef PF_BENCHMARK
diff --git a/yapf/yapf_base.hpp b/yapf/yapf_base.hpp
index 55d2d81ecf..e08422ed3d 100644
--- a/yapf/yapf_base.hpp
+++ b/yapf/yapf_base.hpp
@@ -154,7 +154,7 @@ public:
 #ifdef UNITTEST
 		printf("%c%c%4d-%6d us -%5d rounds -%4d open -%5d closed - CHR %4.1f%% - c/d(%d, %d) - c%d(sc%d, ts%d, o%d) -- \n", bDestFound ? '-' : '!', ttc, veh_idx, t, m_num_steps, m_nodes.OpenCount(), m_nodes.ClosedCount(), cache_hit_ratio, cost, dist, m_perf_cost.Get(1000000), m_perf_slope_cost.Get(1000000), m_perf_ts_cost.Get(1000000), m_perf_other_cost.Get(1000000));
 #else
-		DEBUG(yapf, 1)("[YAPF][YAPF%c]%c%4d- %d us - %d rounds - %d open - %d closed - CHR %4.1f%% - c%d(sc%d, ts%d, o%d) -- ", ttc, bDestFound ? '-' : '!', veh_idx, t, m_num_steps, m_nodes.OpenCount(), m_nodes.ClosedCount(), cache_hit_ratio, cost, dist, m_perf_cost.Get(1000000), m_perf_slope_cost.Get(1000000), m_perf_ts_cost.Get(1000000), m_perf_other_cost.Get(1000000));
+		DEBUG(yapf, 3)("[YAPF][YAPF%c]%c%4d- %d us - %d rounds - %d open - %d closed - CHR %4.1f%% - c%d(sc%d, ts%d, o%d) -- ", ttc, bDestFound ? '-' : '!', veh_idx, t, m_num_steps, m_nodes.OpenCount(), m_nodes.ClosedCount(), cache_hit_ratio, cost, dist, m_perf_cost.Get(1000000), m_perf_slope_cost.Get(1000000), m_perf_ts_cost.Get(1000000), m_perf_other_cost.Get(1000000));
 #endif
 		return bDestFound;
 	}