Soledad Search Icon not appearing until page has mouse over or touched on mobile device

Hello, on my site
The Search Icon (Magnifying glass) does not appear until I mouse over or touch the screen on the mobile.
This would appear to be caused due to a delay in execution or loading, however I do not know who to fix it by changing the settings under Appearence->Customize->Speed Optimization ?
Have tried adding some of the .js files to the “exclude scripts from delay execution” but this has not helped so far.
Thanks for anyhelp
Maria Jenkinson

You can contact the theme author for the free support but you can just disable the Cache plugin and check if it’s related to that.