What is the model of the light devices you have. Do any of them support Local Lan Control? Did you upgrade to the newer integration or are you using the older one that is just a driver?
The rate limit is suppose to be 10 per device per min. So it shouldn't be a problem just because you have more devices if it is following what is documented.
First thing I would do is if you haven't, upgrade to the new Integration as it support local Lan control if the device does. Enable lan control for all of the devices that support it and that will help make the api limits less of a problem.
Of the 140+ devices they have with cloud access 52 currently support lan control. That is one of the best way to remove the rate limits If you can.
Lastly I would reach out to Govee and ask what they can do to help you. I believe you may even be able to ask for them to override the value for your account. They even asked me at one point if i needed them to adjust my account for the Rate limits. It can't hurt to ask their support staff.
The thread for the new integration is:
