Client lag vs server lag
Client lag is on your end. Your PC cannot keep up with rendering all the characters, vehicles, and house items in the server. Your FPS drops. Your game feels choppy. This is fixable.
Server lag is a different problem. The server itself is running slowly, which causes your character to teleport, items to appear in wrong positions, and actions to take a second to register. Your FPS looks fine, but the game feels broken. The only fix is to leave and join a different, less-loaded server.
To tell the difference: press Shift+F5 in Roblox to see your ping. If your ping is over 200ms, it is server lag. If your ping is normal but your FPS is low, it is client lag.
Fix client lag
Brookhaven renders a lot of detailed character accessories and house furniture. On integrated graphics, this is the main bottleneck.
Set your power plan to High Performance. Press Win+R, type powercfg.cpl, press Enter. Select High Performance. On a laptop, keep it plugged in — Brookhaven is one of the games where battery mode makes an obvious difference because it involves a lot of continuous rendering at low priority.
In Brookhaven, press Esc, go to Settings, and set Graphics Mode to Manual. Set Graphics Quality to 2 or 3. Brookhaven is not fast-paced, so lower graphics quality is less disorienting here than in a game like Arsenal.
Close your browser and Discord before playing. Brookhaven loads a large number of textures continuously as players move around and change outfits. Every MB of RAM that goes to a browser tab is RAM not available for texture caching.
Choose a less crowded server
This is the most underrated Brookhaven tip. The server browser shows server capacity. Servers at 70–85% capacity run noticeably better than full ones. A half-full server has fewer character models, fewer player accessories, and less prop interaction to process on both the server and your client.
To access the server browser: on the Brookhaven game page, click the Servers tab, then look at the player counts. Pick a server with 10–15 fewer players than the maximum.
Disable Xbox Game Bar
Press Win+I, go to Gaming, turn off Xbox Game Bar. Then Gaming, Captures, turn off background recording. Brookhaven involves sustained medium GPU load over long sessions. The background recorder adds constant overhead that compounds over time.
What to expect
On integrated graphics: expect 25–40 FPS in normal play, dropping during heavy outfit loading or large house builds. These settings push that floor up. You will not reach 60 FPS stable on integrated graphics in a full Brookhaven server.
On a budget dedicated GPU: 45–60 FPS stable in most situations, with drops when many custom character models load simultaneously.
If the game still feels broken after these changes — characters teleporting, lag spikes despite decent FPS — you are on a bad server. Leave and rejoin.