can adding floating nav/search bar
 

via wordpress hurt speed much? tnx

best way to find out is to run a page speed test with and without, that will let you know how much time the plugin/new feature add's to your site's load time.

https://tools.pingdom.com/ and https://gtmetrix.com/ give pretty good results.

Should run it a few times each way and then average the results out.


:2 cents: