Im not sure what graphic chip is in everyone's phones but if you are on ICS, consider using the newest Adreno libs released by Qualcomm,
here. For Sony phones, try
this set.
Both old and new LWP are optimized for phones with Adreno but Im not sure which version. The FC are caused by missing resources - perhaps in Framework as these are intended for Sony phones having SEMC Frameworks.
But I agree, the old one was more stable and smooth so if the new one doesnt work well for you, please try the one attached in this reply.