diff --git a/agb/Cargo.lock b/agb/Cargo.lock
index ff15a26..3ea5f3c 100644
--- a/agb/Cargo.lock
+++ b/agb/Cargo.lock
@@ -25,6 +25,7 @@ dependencies = [
  "bare-metal",
  "bitflags",
  "hashbrown",
+ "rustc-hash",
 ]
 
 [[package]]
@@ -97,9 +98,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bytemuck"
-version = "1.7.3"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "439989e6b8c38d1b6570a384ef1e49c8848128f5a97f3914baef02920842712f"
+checksum = "0e851ca7c24871e7336801608a4797d7376545b6928a10d32d75685687141ead"
 
 [[package]]
 name = "byteorder"
@@ -236,15 +237,15 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.9.0"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"
+checksum = "87f3e037eac156d1775da914196f0f37741a274155e34a0b7e427c35d2a2ecb9"
 
 [[package]]
 name = "png"
-version = "0.17.4"
+version = "0.17.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02cd7d51cea7e2fa6bbcb8af5fbcad15b871451bfc2d20ed72dff2f4ae072a84"
+checksum = "dc38c0ad57efb786dd57b9864e5b18bae478c00c824dc55a38bbc9da95dde3ba"
 dependencies = [
  "bitflags",
  "crc32fast",
@@ -306,6 +307,12 @@ dependencies = [
  "getrandom",
 ]
 
+[[package]]
+name = "rustc-hash"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
+
 [[package]]
 name = "serde"
 version = "1.0.136"
diff --git a/agb/Cargo.toml b/agb/Cargo.toml
index 781aea3..55af71f 100644
--- a/agb/Cargo.toml
+++ b/agb/Cargo.toml
@@ -27,6 +27,7 @@ agb_sound_converter = { version = "0.1.0", path = "../agb-sound-converter" }
 agb_macros = { version = "0.1.0", path = "../agb-macros" }
 agb_fixnum = { version = "0.1.0", path = "../agb-fixnum" }
 bare-metal = "1.0"
+rustc-hash =  { version = "1.0", default-features = false }
 
 [package.metadata.docs.rs]
 default-target = "thumbv6m-none-eabi"
diff --git a/agb/src/display/background.rs b/agb/src/display/background.rs
index b94aa14..78f5575 100644
--- a/agb/src/display/background.rs
+++ b/agb/src/display/background.rs
@@ -1,9 +1,11 @@
 use core::cell::RefCell;
+use core::hash::BuildHasherDefault;
 use core::ops::{Deref, DerefMut};
 
 use alloc::vec::Vec;
 use alloc::{boxed::Box, vec};
 use hashbrown::HashMap;
+use rustc_hash::FxHasher;
 
 use crate::bitarray::Bitarray;
 use crate::{
@@ -95,7 +97,7 @@ pub struct VRamManager<'a> {
     generation: u16,
     free_pointer: Option<usize>,
 
-    tile_set_to_vram: HashMap<TileReference, (u16, u16)>,
+    tile_set_to_vram: HashMap<TileReference, (u16, u16), BuildHasherDefault<FxHasher>>,
     references: Vec<VRamState>,
     vram_free_pointer: Option<usize>,
 }
@@ -109,7 +111,7 @@ impl<'a> VRamManager<'a> {
             generation: 0,
             free_pointer: None,
 
-            tile_set_to_vram: HashMap::new(),
+            tile_set_to_vram: HashMap::default(),
             references: vec![VRamState::Free(0)],
             vram_free_pointer: None,
         }