lua newbie question: is OO in lua too slow?

[Tim Menzies <tim@...>]

sorry if this is an FAQ but looking at
http://lua-users.org/wiki/ObjectBenchmarkTests, it seems that:

1)  the standard ways of doing OO in Lua has a large overhead.

2) best way seems to the "closure method"

anyone got a comment on that?

does not matter how the OO stuff is done?

and when folks optimize a slow  Lua script, is the *first* thing that
they look at is the class system and change that? or...?

ADVAthanxNCE,

Tim Menzies