android - Animation lags on large screen sizes -

i have relativelayout stores 5 imageview, each of them contains image of cloud. images differ in size, smallest being 582*182 , largest being 700*400. size of area contains clouds 860*1080.
in top of screen image want load onto server , below relativelayout described above. when user falls on screen clouds start moving. problem whole animation lagging badly (i'm trying run on htc one). animation described below:

    <set xmlns:android="http://schemas.android.com/apk/res/android"          android:interpolator="@android:anim/linear_interpolator"          android:fillenabled="true"          android:fillafter="true">         <translate xmlns:android="http://schemas.android.com/apk/res/android"                    android:duration="12000"                    android:toxdelta="-12%p"                    android:repeatcount="infinite"                    android:repeatmode="reverse"/>     </set> 

the imageviews described so:

<imageview     android:id="@+id/clouds_image_view_cloud2"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:contentdescription="cloud 2"     android:layout_alignparentleft="true"     android:layout_alignparenttop="true"/> 

and start below:

animation animrtol = animationutils.loadanimation(mcontext, r.anim.right_to_left); animation animltor = animationutils.loadanimation(mcontext, r.anim.left_to_right);  mclouds[0].startanimation(animrtol); mclouds[2].startanimation(animrtol);  mclouds[1].startanimation(animltor); mclouds[3].startanimation(animltor);  mclouds[4].startanimation(animrtol); 

i've checked hardware acceleration condition via mclouds[0].ishardwareaccelerated() - it's enabled. i've tried decrease bitmap's size loading them in rgb_565 format - no luck. there can lagging?

p.s. animation of same images works without lagging on ios version of application runs on iphone 4.

upd.: i've noticed animations run smoothly if reduce number of clouds been animated 5 4.

this may sound crazy has saved me in similar situation:

use different animation objects different views.

in case: need 3 animrtl objects, , 2 animltr java objects. so: animltr1, animltr2, animrtl1 animrtl2, animrtl3. note don't have create more xml animation files 2 have.

try , let me know result.

edit :

there 2 other solutions worth trying on mind:

in manifest, put under application tag

  android:hardwareaccelerated="true"    android:largeheap="true"