Problem with Bing Ads

Im trying to advertise my Website with Bing Ads but the problem is that i have a Quality Score of only 3.The keyword relevance is good,the Landingpage relevance is no problem but the Landingpage User Experience is poor.I dont understand that,the Website design is really professional,it has a navigation,a Private Policy.It has as much content as other sucessfull Websites in this field and the quality of the content is good.The Landingpage load time is not that bad.For the 2 Images it has alt text.It has a fixed width of 960px but I don't look for mobile traffic.What are the important things I should do to optimize my Landingpage User Experience ? There are just so many things that i could do and I dont know whats really important.

First and fore most thing you need to consider is on

* Bounce Rate, check and see, how much time a visitor spends on your site, if it is less then 10 seconds, You get to know that depsite of how much professional it is, either you are driving wrong traffic, or the user do not like your page at all.
* 30 Days Revisit, check if they bookmark your site or visit your site again, sometimes it is also a key thing in defining user experience, because if they like it, they might bookmark it.

Focus on one thing, are you providing what your user is exactly looking for? If not, then you need to work on it.

Cheers.