diff --git a/crates/pi-natives/src/chunk/common.rs b/crates/pi-natives/src/chunk/common.rs
index 936be0ead..4520ea644 100644
--- a/crates/pi-natives/src/chunk/common.rs
+++ b/crates/pi-natives/src/chunk/common.rs
@@ -16,7 +16,7 @@ env_uint! {
 	// Configured max chunk lines.
 	pub static MAX_CHUNK_LINES: usize = "PI_CHUNK_MAX_LINES" or 25 => [1, usize::MAX];
 	// Configured min recurse savings.
-	pub static MIN_RECURSE_SAVINGS: usize = "PI_CHUNK_MIN_SAVINGS" or 5 => [1, usize::MAX];
+	pub static MIN_RECURSE_SAVINGS: usize = "PI_CHUNK_MIN_SAVINGS" or 4 => [1, usize::MAX];
 }
 
 // ── Internal types ───────────────────────────────────────────────────────
diff --git a/crates/pi-natives/src/chunk/render.rs b/crates/pi-natives/src/chunk/render.rs
index e11ecc70e..15c72fe0c 100644
--- a/crates/pi-natives/src/chunk/render.rs
+++ b/crates/pi-natives/src/chunk/render.rs
@@ -9,11 +9,11 @@ type ChunkLookup<'a> = HashMap<&'a str, &'a ChunkNode>;
 
 env_uint! {
 	 // Configured full display threshold.
-	 static FULL_DISPLAY_THRESHOLD: usize = "PI_CHUNK_FULL_DISPLAY_THRESHOLD" or 40 => [1, usize::MAX];
+	 static FULL_DISPLAY_THRESHOLD: usize = "PI_CHUNK_FULL_DISPLAY_THRESHOLD" or 80 => [1, usize::MAX];
 	 // Configured preview head lines.
-	 static PREVIEW_HEAD_LINES: usize = "PI_CHUNK_PREVIEW_HEAD_LINES" or 10 => [1, usize::MAX];
+	 static PREVIEW_HEAD_LINES: usize = "PI_CHUNK_PREVIEW_HEAD_LINES" or 12 => [1, usize::MAX];
 	 // Configured preview tail lines.
-	 static PREVIEW_TAIL_LINES: usize = "PI_CHUNK_PREVIEW_TAIL_LINES" or 5 => [1, usize::MAX];
+	 static PREVIEW_TAIL_LINES: usize = "PI_CHUNK_PREVIEW_TAIL_LINES" or 4 => [1, usize::MAX];
 }
 
 pub fn line_to_containing_chunk_path(tree: &ChunkTree, line: u32) -> Option<String> {