Input Fields Slow/Delayed

[liammccann]

Device: Blackberry Bold 9780
Version: 6.0

When using the following HTML code for user input, there is many unexpected delays.
-Usually delay in allowing the user to enter text
-A delay in moving between fields sometimes jumping
-If the user goes to a field and enters text to quick it stops them entering it atoll

The most president problem is the delay in allowing the user to type text which 9/10 times occurs.

The code we are using for the form is (home.html):

<div data-bb-type="round-panel"> 
    <div data-bb-type="panel-header">Personal Details</div>

    <div data-bb-type="label-control-container">

        <div data-bb-type="row">
           <div data-bb-type="label">First Name</div>
           <input type="text" />
       </div>

        <div data-bb-type="row">
           <div data-bb-type="label">Middle Name</div>
           <input type="text" />
       </div>


        <div data-bb-type="row">
           <div data-bb-type="label">Last Name</div>
           <input type="text" />
       </div>

        <div data-bb-type="row">
           <div data-bb-type="label">Notes</div>
           <textarea rows="5"></textarea>
        </div>

    </div>
</div>

The main page which loads it head file looks like

    <meta name="x-blackberry-defaultHoverEffect" content="true" />
    <meta name="viewport" content="initial-scale=1.0,width=device-width,user-scalable=no,target-densitydpi=device-dpi" />
    <link  rel="stylesheet" type="text/css" href="bbui-0.9.2.css"><link />
    <script type="text/javascript" src="bbui-0.9.2.js"></script>

And the body just simply

Which calls the javascript function that has the followling lines of code:
bb.init(); bb.pushScreen('home.html', 'FormPersonal');}

When removing <rim:navigation mode="focus" /> the delay doesn't happen. but we require focus to make the UI more user friendly.
We have tried many different ways and still cant seem to solve this delay.