K850i mismanaged heap memory?

Yesterday I got a 8GB SDHC MicroSD for my K850i. I uploaded some music and videos (no more than 1GB) and it worked fine (although the media centre was EXTREMELY slow). Then today everything started getting slow, the camera, games etc. One time when I shut down the camera the blue led's stayed on!

So obviously I thought it was the 8GB card but when I put back my original 512 M2 and it was still slow! Especially the media centre, it's horrible.

So then I started thinking and thinking, and ...... I then made my conclusion. All the guys on this forums that know a lot about firmware, hear me out:

I think that the only thing that makes the K850i so slow is that it's heap memory is very badly managed. I builds up, and builds up until there is no more the use, and the phone or restarts or gets so slow that you can not use it any more. And yes I know that the memory is dynamic, but if there is no more to add, there is physically no more.

Ok so now that you know what I think is wrong with the phone's firmware, you probably want to know what I suggest we do, right? Well I know that patching isn't yet available for the K850i(I think), but I think that a patch (.vkp) might be able to fix the problem.

What do you guys think?