I have running several wordpress plugins on my site and as per suggestions to wordpress performance optimizations I am planning to do the optimizations on plugins myself.

However, that will mean that I will have to modify existing plugins codes. Now, as wordpress plugins do release frequent updates, the updates will wipe out my manual changes. How to keep sync between these? That means, how can I get updated plugin and keep my manual changes as well?

I have several WordPress running plugins on my site and as per suggestions of wordpress performance optimizations I am planning to do the optimizations on plugins myself.

However, that will mean that I will have to modify existing plugins codes. Now, as WordPress plugins release frequent updates, the updates will wipe out my manual changes. How can I keep sync between these? That means, how can I get updated plugin and keep my manual changes as well?

I have running several wordpress plugins on my site and as per suggestions to wodpress performance optimizations I am planning to do the optimizations on plugins myself. However, that will mean that, I will have to modify existing plugins codes. Now, as wordpress plugins do release frequent updates, the updates will wipe out my manual changes. How to keep sync between these? That means, how can I get updated plugin and keep my manual changes as well? Thanks.

I have running several wordpress plugins on my site and as per suggestions to wordpress performance optimizations I am planning to do the optimizations on plugins myself. 

However, that will mean that I will have to modify existing plugins codes. Now, as wordpress plugins do release frequent updates, the updates will wipe out my manual changes. How to keep sync between these? That means, how can I get updated plugin and keep my manual changes as well?