Which digital ocean server plan would provide the absolutely most powerful Jitsi experience?

I am hosting a large event with Jitsi meet software. Which digital ocean droplet plan would be most powerful, for hosting a large gathering?

Here are the listed Options:

Is there a point beyond which the server capacity doesn’t make much difference?

Are there any extra steps beyond the quick setup I need to take to optimize for a large gathering?

Hi, DO market place recommend to use Dedicated Optimized CPU with minimum 4GB Ram or Higher

As for specific configuration. yes there are, for example the resolution of the videos being streamed as default and other which I cannot remember but they are all in the config.js. There are comments on each config.