Install VestaCP switch to Centmin Mod ?

Hello there
I am using Vestacp nginx + php-fpm. There is 1 gb ram 40 gd hdd (not ssd).

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WordPress on my site. While there are no visitors (new site) 1 gb ram is completely using php -fpm.

I want to go to the CMM.

I have 1 site and I use WordPress. Will the problem be permalink?
Is nginx + php-fpm installed automatically?
How to set dns. I want to use my own ns premier.
Can I open an ftp account?
Is the CMM configured by itself according to the characteristics of the vps?

I want to get the best configuration and performance. Is nginx + php-pfm enough?

I translated it with google translate. There may be translation mistakes.

 

so thanks for fast reply