When making proxies, make them in an edit friendly codec, i.e., cineform. If you make H264 proxies you’re essentially defeating the purpose because H264 media isn’t edit friendly and will bog down your CPU.
I’d also recommend that you make all proxies in Resolve. It’s just easier. Resolve also has an audio export setting “same as source” which makes it virtually impossible to create proxies that don’t match your originals which is essential to the proxy workflow in Premiere.
Pluraleyes was a great program when Premiere didn’t have audio syncing built in. However, there’s no need for Pluraleyes at all since Premiere has robust syncing. Do all of your audio syncing in Premiere and it can be done either before or after proxy creation.
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