diff --git a/src/discordClientOptions.ts b/src/discordClientOptions.ts
new file mode 100644
index 0000000..43be8b4
--- /dev/null
+++ b/src/discordClientOptions.ts
@@ -0,0 +1,21 @@
+import { type ClientOptions, Options } from "discord.js-selfbot-v13";
+
+export function createDiscordClientOptions(): ClientOptions {
+  return {
+    makeCache: Options.cacheWithLimits({
+      ...Options.defaultMakeCacheSettings,
+      MessageManager: 25,
+      ReactionManager: 0,
+      ReactionUserManager: 0,
+      PresenceManager: 0,
+    }),
+    partials: ["USER", "CHANNEL", "GUILD_MEMBER", "MESSAGE"],
+    sweepers: {
+      messages: { interval: 300, lifetime: 600 },
+      threads: { interval: 3600, lifetime: 14400 },
+    },
+    restRequestTimeout: 15_000,
+    retryLimit: 2,
+    restGlobalRateLimit: 45,
+  };
+}
diff --git a/src/index.ts b/src/index.ts
index fd60a60..a839bb7 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -5,6 +5,7 @@ import "dotenv/config";
 import { Client } from "discord.js-selfbot-v13";
 import { config } from "./config";
 import { closeDatabase, initializeDatabase } from "./database/drizzle";
+import { createDiscordClientOptions } from "./discordClientOptions";
 import { createChildLogger } from "./logger";
 import { startPendingAIAnalysisWorker } from "./moderation/aiAnalyzer";
 import { syncBacklogMessages } from "./moderation/backlogSync";
@@ -22,7 +23,7 @@ logger.info(
 );
 
 logger.info("Creating Discord client");
-const client = new Client();
+const client = new Client(createDiscordClientOptions());
 const voiceController = new VoiceController(client);
 
 let isShuttingDown = false;
diff --git a/tests/vendor/requestHandlerBackoff.test.ts b/tests/vendor/requestHandlerBackoff.test.ts
new file mode 100644
index 0000000..20d25fe
--- /dev/null
+++ b/tests/vendor/requestHandlerBackoff.test.ts
@@ -0,0 +1,15 @@
+import { describe, expect, it } from "vitest";
+
+const { calculateRetryDelay } = await import(
+  "../../vendor/discord.js-selfbot-v13/src/rest/RequestHandler.js"
+);
+
+describe("calculateRetryDelay", () => {
+  it("increases exponentially and applies bounded jitter", () => {
+    expect(calculateRetryDelay(1, () => 0)).toBe(250);
+    expect(calculateRetryDelay(2, () => 0)).toBe(500);
+    expect(calculateRetryDelay(3, () => 0)).toBe(1000);
+    expect(calculateRetryDelay(10, () => 0)).toBe(5000);
+    expect(calculateRetryDelay(1, () => 0.999)).toBe(499);
+  });
+});
diff --git a/tests/vendor/selfbotClientOptions.test.ts b/tests/vendor/selfbotClientOptions.test.ts
new file mode 100644
index 0000000..eb1cf8b
--- /dev/null
+++ b/tests/vendor/selfbotClientOptions.test.ts
@@ -0,0 +1,22 @@
+import { describe, expect, it } from "vitest";
+import { createDiscordClientOptions } from "../../src/discordClientOptions";
+
+describe("createDiscordClientOptions", () => {
+  it("uses low-memory message cache and active sweepers", () => {
+    const options = createDiscordClientOptions();
+
+    expect(options.restRequestTimeout).toBe(15_000);
+    expect(options.retryLimit).toBe(2);
+    expect(options.restGlobalRateLimit).toBe(45);
+    expect(options.sweepers).toEqual({
+      messages: { interval: 300, lifetime: 600 },
+      threads: { interval: 3600, lifetime: 14400 },
+    });
+    expect(options.partials).toEqual([
+      "USER",
+      "CHANNEL",
+      "GUILD_MEMBER",
+      "MESSAGE",
+    ]);
+  });
+});
diff --git a/vendor/discord.js-selfbot-v13 b/vendor/discord.js-selfbot-v13
index 66e2126..d011eed 160000
--- a/vendor/discord.js-selfbot-v13
+++ b/vendor/discord.js-selfbot-v13
@@ -1 +1 @@
-Subproject commit 66e212677c304bbe7420eff4090ffc86ef832d29
+Subproject commit d011eed711a39192ea8caddd02e81fa63a34d5bb