diff --git a/src/adapter/debug.ts b/src/adapter/debug.ts
index a91c6840..e6df8074 100644
--- a/src/adapter/debug.ts
+++ b/src/adapter/debug.ts
@@ -198,11 +198,17 @@ export function fromSnapshot(events: string[]): number[] {
 		}
 	}
 
-	out.push(...flushTable(new Map(strings.map((x, i) => [x, i]))));
+	const strs = flushTable(new Map(strings.map((x, i) => [x, i])));
+	for (let i = 0; i < strs.length; i++) {
+		out.push(strs[i]);
+	}
 	if (unmounts.length > 0) {
 		out.push(MsgTypes.REMOVE_VNODE, unmounts.length, ...unmounts);
 	}
-	out.push(...operations);
+
+	for (let i = 0; i < operations.length; i++) {
+		out.push(operations[i]);
+	}
 
 	return out;
 }
diff --git a/src/adapter/protocol/events.ts b/src/adapter/protocol/events.ts
index 753d3665..ce4a688e 100644
--- a/src/adapter/protocol/events.ts
+++ b/src/adapter/protocol/events.ts
@@ -93,9 +93,12 @@ export function flush(commit: Commit) {
 	if (unmountIds.length > 0) {
 		msg.push(MsgTypes.REMOVE_VNODE, unmountIds.length, ...unmountIds);
 	}
-	msg.push(...operations);
+
+	for (let i = 0; i < operations.length; i++) {
+		msg.push(operations[i]);
+	}
 	if (stats !== null) {
-		msg.push(...stats2ops(stats));
+		stats2ops(stats, msg);
 	}
 
 	return { type: "operation_v2", data: msg };
@@ -201,7 +204,8 @@ export function applyEvent(store: Store, type: keyof DevtoolEvents, data: any) {
 				store.profiler.isSupported.value = !!data.supportsProfiling;
 			}
 			if (!store.profiler.supportsRenderReasons.value) {
-				store.profiler.supportsRenderReasons.value = !!data.supportsRenderReasons;
+				store.profiler.supportsRenderReasons.value =
+					!!data.supportsRenderReasons;
 			}
 
 			if (!store.supports.hooks.value) {
diff --git a/src/adapter/shared/stats.ts b/src/adapter/shared/stats.ts
index 2dcabdd9..0b0e7fa4 100644
--- a/src/adapter/shared/stats.ts
+++ b/src/adapter/shared/stats.ts
@@ -113,44 +113,52 @@ export function createStats(): Stats {
 	};
 }
 
-export function stats2ops(stats: Stats): number[] {
-	return [
-		MsgTypes.COMMIT_STATS,
-		...stats.roots,
-		...stats.classComponents,
-		...stats.functionComponents,
-		...stats.fragments,
-		...stats.forwardRef,
-		...stats.memo,
-		...stats.suspense,
-		...stats.elements,
-		stats.text,
-
-		...stats.keyed,
-		...stats.unkeyed,
-		...stats.mixed,
-
-		stats.mounts.components,
-		stats.mounts.elements,
-		stats.mounts.text,
-		stats.updates.components,
-		stats.updates.elements,
-		stats.updates.text,
-		stats.unmounts.components,
-		stats.unmounts.elements,
-		stats.unmounts.text,
-
-		// Single child types
-		stats.singleChildType.roots,
-		stats.singleChildType.classComponents,
-		stats.singleChildType.functionComponents,
-		stats.singleChildType.fragments,
-		stats.singleChildType.forwardRef,
-		stats.singleChildType.memo,
-		stats.singleChildType.suspense,
-		stats.singleChildType.elements,
-		stats.singleChildType.text,
-	];
+export function stats2ops(stats: Stats, out: number[]): void {
+	out.push(MsgTypes.COMMIT_STATS);
+
+	pushStatsChildren(out, stats.roots);
+	pushStatsChildren(out, stats.classComponents);
+	pushStatsChildren(out, stats.functionComponents);
+	pushStatsChildren(out, stats.fragments);
+	pushStatsChildren(out, stats.forwardRef);
+	pushStatsChildren(out, stats.memo);
+	pushStatsChildren(out, stats.suspense);
+	pushStatsChildren(out, stats.elements);
+
+	out.push(stats.text);
+
+	pushStatsChildren(out, stats.keyed);
+	pushStatsChildren(out, stats.unkeyed);
+	pushStatsChildren(out, stats.mixed);
+
+	out.push(stats.mounts.components);
+	out.push(stats.mounts.elements);
+	out.push(stats.mounts.text);
+	out.push(stats.updates.components);
+	out.push(stats.updates.elements);
+	out.push(stats.updates.text);
+	out.push(stats.unmounts.components);
+	out.push(stats.unmounts.elements);
+	out.push(stats.unmounts.text);
+
+	// Single child types
+	out.push(stats.singleChildType.roots);
+	out.push(stats.singleChildType.classComponents);
+	out.push(stats.singleChildType.functionComponents);
+	out.push(stats.singleChildType.fragments);
+	out.push(stats.singleChildType.forwardRef);
+	out.push(stats.singleChildType.memo);
+	out.push(stats.singleChildType.suspense);
+	out.push(stats.singleChildType.elements);
+	out.push(stats.singleChildType.text);
+}
+
+function pushStatsChildren(out: number[], stats: StatsChildren): void {
+	out.push(stats[0]);
+	out.push(stats[1]);
+	out.push(stats[2]);
+	out.push(stats[3]);
+	out.push(stats[4]);
 }
 
 export interface ParsedStats {