i need help

To resolve this issue, you can add the following code to the Header code (Dashboard > Customize > custom code)

<style>
@media (min-width: 1110px) {
/* Main */
#main > .container > .row {
background-position: 760px 0;
}

#primary {
width: 700px;
}

.news-slider .carousel {
width: 480px;
}

.news-slider .carousel-inner,
.news-slider .carousel .item,
.news-slider .carousel .carousel-inner .hentry {
height: 100%;
}

.news-slider .carousel-list {
width: 219px;
}

#secondary {
width: 300px;
}

#secondary .entry-thumbnail img {
width: 300px;
}

.single .site-content > .post .entry-content {
max-width: 530px;
}
}
</style>

Add the following code to the “DW Focus footer script”
see the screenshot: http://imgur.com/amR3OU8 ”

<script>
 var height = jQuery('.news-slider').height();
 jQuery('.news-slider .carousel').css('height', height);
 </script>

– Then move through  Dashboard > setting > Media, change the image size : http://imgur.com/pLIg49O

To resolve this issue, you can add the following code to the Header code (Dashboard > Customize > custom code):

<style>
@media (min-width: 1110px) {
/* Main */
#main > .container > .row {
background-position: 810px 0;
}

#primary {
width: 750px;
}

.news-slider .carousel {
width: 500px;
}

.news-slider .carousel-inner,
.news-slider .carousel .item,
.news-slider .carousel .carousel-inner .hentry {
height: 100%;
}

.news-slider .carousel-list {
width: 250px;
}

#secondary {
width: 250px;
}

#secondary .entry-thumbnail img {
width: 250px;
}

.single .site-content > .post .entry-content {
max-width: 580px;
}
}
</style>

Add the following code to the “DW Focus footer script”
see the screenshot: http://imgur.com/amR3OU8 ”

<script>
 var height = jQuery('.news-slider').height();
 jQuery('.news-slider .carousel').css('height', height);
 </script>

If you still face there issue, you can send me username & password of your site (via private answer) for further checking.
Hope this helps !

after that 
https://www.evernote.com/shard/s163/sh/fcc4c8b3-ffe6-465b-ae63-86cecb765036/b1634a555e01db2008e995e1d92ab8b2

I removed the style 
because when I wrote, had greater load on the server
tell me – how to make sure that this style would not create a large load on the database

Don’t worry, the snippet that I gave previously doesn’t affect on your loading time of the site. I also tested on our site, nothing happens and everything works fine for me. You can try  W3 Total Cache plugin to help you out.
Also, to resolve the issue in the issue with the title in the slider when you have used the code. you can add the following code to the style.css file:

.news-slider .carousel .carousel-inner .entry-header { padding-bottom: 30px; }

Hope this helps !

i update theme
I did everything you said on the new version of the theme
that’s what I get
https://www.evernote.com/shard/s163/sh/dc0c0d8e-9554-4db2-82d1-b04e346b0a04/553f23f77a09eb71e4317ec85b9e2743