problem with radio signal strenght after update

view story

http://forum.xda-developers.com – just installed pa 4.5 beta 2 from pa 4.5 beta1. hv noticed my 3g speeds have gone down drastically(had 8-9 mbps down earlier n now i hv 0.07-0.08 down!). but it still shows the 'H' sign on my network bar. any suggestions as to what i can do to remedy this? im still very much a noob thanks! one of the best roms out there! (HowTos)