First, make sure you have been through the normal troubleshooting steps here.
If you are playing on a Windows laptop and continue to see slow performance, it may be due to your laptop entering a power-saving mode, which can slow the machine down. You can set up a custom power profile to ensure the laptop is running at peak performance. Here's how:
- Go to your Control Panel
- Select "System & Security"
- Select "Power Options"
- On the left side of the window, select "Create a power plan"
- Select "High performance" and click "Next"
- Put all of your settings at maximum
This will ensure your laptop is running at maximum performance, but it will also drain more power from the battery so make sure you have the computer plugged in.