Android : Best way to do the same than you can do with nested linearlayouts

I have to create a windows8 like screen. I create it easily using nested linearlayouts. I know from a performance point of view it is not a good idea be having nested linearlayouts, so I want to ask you which other way I can do that, which scale well between portrait and landscape and have a better performance. Even because really each textview in the next xml code will be really implemented with another linearlayout, because it have to include text and icons. Sadly I am new in stackoverflow so I can publish images

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/bg1_blurred"
    android:gravity="center"
    tools:context="com.lm2a.w8opt.MainActivity" >

    <LinearLayout
        android:id="@+id/linearLayout1"
        android:layout_width="300dp"
        android:layout_height="200dp"
        android:orientation="vertical"
        android:weightSum="5" >

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_weight="2"
            android:orientation="horizontal"
            android:weightSum="5" >

            <TextView
                android:id="@+id/textView1"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:layout_margin="1dp"
                android:layout_weight="1"
                android:textColor="@color/txt_color_white"
                android:textSize="@dimen/text_big"
                android:background="@color/square_color_red"
                android:padding="10dp"
                android:text="T" />

            <TextView
                android:id="@+id/textView2"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:layout_margin="1dp"
                android:layout_weight="4"
                android:background="#00000000"
                android:text="W" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_weight="3"
            android:orientation="horizontal"
            android:weightSum="5" >

            <TextView
                android:id="@+id/textView3"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:layout_margin="1dp"
                android:layout_weight="1"
                android:background="@color/square_color_yellow"
                android:text="X" />

            <TextView
                android:id="@+id/textView4"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:layout_margin="1dp"
                android:layout_weight="2"
                android:background="@color/square_color_blue"
                android:text="Y" />

            <TextView
                android:id="@+id/textView5"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:layout_margin="1dp"
                android:layout_weight="2"
                android:background="@color/square_color_green"
                android:text="Z" />
        </LinearLayout>
    </LinearLayout>

</LinearLayout>