Some script or plugin on your site is breaking the responsiveness of your website on desktop view. You need to remove it.
When I resize my desktop browser, your website does not resize accordingly.
I am unable to troubleshoot your slider in mobile view unless I am able to get the website to resize on desktop view. I need to use desktop developer tools for troubleshooting your mobile issue.
I am able to see your slider text getting smushed together on my iPhone 6 Plus.
The problem is I am unable to provide solution based on what I see on my mobile phone.
I need the desktop view to resize properly.
Hope you understand my explanation.