I'm not having any issues with 8.9.0.1 version. In Skype, click on Help, Report a Problem.
One of the minimum specs are:
Processor:
An Intel Pentium 4 processor or later that's SSE2 and SSE3 capable
Open a terminal and do:
cat /proc/cpuinfo
and look to see if you have sse2 and or sse3 and let us know.