refactor(scenegraph): use super fast hasher

Cargo.toml

@@ -17,5 +17,6 @@ mint = "0.5.9"
 mio = {version = "0.8.3", features = ["net", "os-poll", "os-ext"]}
 parking_lot = "0.12.1"
 rccell = "0.1.3"
+rustc-hash = "1.1.0"
 slab = "0.4.6"
 thiserror = "1.0.31"

src/core/scenegraph.rs

@@ -1,17 +1,19 @@
 use crate::core::client::Client;
 use crate::nodes::core::Node;
 use anyhow::Result;
+use core::hash::BuildHasherDefault;
 use dashmap::DashMap;
 use libstardustxr::scenegraph;
 use libstardustxr::scenegraph::ScenegraphError;
 use rccell::RcCell;
+use rustc_hash::FxHasher;
 use std::cell::RefCell;
 use std::rc::{Rc, Weak};
 
 #[derive(Default)]
 pub struct Scenegraph<'a> {
 	client: RefCell<Weak<Client<'a>>>,
-	nodes: DashMap<String, RcCell<Node<'a>>>,
+	nodes: DashMap<String, RcCell<Node<'a>>, BuildHasherDefault<FxHasher>>,
 }
 
 impl<'a> Scenegraph<'a> {