diff --git a/packages/dds/matrix/src/handlecache.ts b/packages/dds/matrix/src/handlecache.ts
index 315985f32bca..66080232c99f 100644
--- a/packages/dds/matrix/src/handlecache.ts
+++ b/packages/dds/matrix/src/handlecache.ts
@@ -72,11 +72,10 @@ export class HandleCache implements IVectorConsumer<Handle> {
 	/**
 	 * Used by {@link HandleCache.cacheMiss} to retrieve handles for a range of positions.
 	 */
-	private getHandles(start: number, end: number): Handle[] {
+	private getHandles(start: number, end: number, handles: Handle[]): Handle[] {
 		// TODO: This can be accelerated substantially using 'walkSegments()'.  The only catch
 		//       is that
 
-		const handles: Handle[] = [];
 		const { vector } = this;
 
 		for (let pos = start; pos < end; pos++) {
@@ -102,16 +101,15 @@ export class HandleCache implements IVectorConsumer<Handle> {
 		//       the handle cache).
 
 		if (_position < this.start) {
-			this.handles = [...this.getHandles(_position, this.start), ...this.handles];
+			const handles: Handle[] = [];
+			this.getHandles(_position, this.start, handles);
+			handles.push(...this.handles);
+			this.handles = handles;
 			this.start = _position;
 			return this.handles[0];
 		} else {
 			ensureRange(_position, this.vector.getLength());
-
-			this.handles = [
-				...this.handles,
-				...this.getHandles(this.start + this.handles.length, _position + 1),
-			];
+			this.getHandles(this.start + this.handles.length, _position + 1, this.handles);
 			return this.handles[this.handles.length - 1];
 		}
 	}