[Building Sakai] Forums slow in 10.2

[David Wafula Wanyonyi]

Dear Team,
Recently we have users experiencing extremely slow response with forums (some  posts take over 5 minutes before loading).

We run 10.2 on Solaris 11 over 4 clusters, each with 8GB RAM, on Mysql. The forums install is default. Has anyone experienced  this ? Where would be the most obvious place to start looking.
Many thanks,
DAvid

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