searching with arrow key skips all the way to the end

When searcing with left/right arrows usualy 10 seconds are skipped.

But if
the cahe for local files are set to fx. 1024kB searching back and forth no longer work as expected and very often is skips all the way to the end or beginning of the file.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: smplayer 0.8.3-1
ProcVersionSignature: Ubuntu 3.11.0-11.4-lowlatency 3.11.3
Uname: Linux 3.11.0-11-lowlatency i686
ApportVersion: 2.12.5-0ubuntu2
Architecture: i386
Date: Wed Oct 16 23:44:33 2013
InstallationDate: Installed on 2013-05-21 (148 days ago)
InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Alpha i386 (20130521)
MarkForUpload: True
SourcePackage: smplayer
UpgradeStatus: No upgrade log present (probably fresh install)