TotemManager 

@Exdcarca:
Alt+Z -> Frame strata are never or bad used by my mod, so I should check that.
WOW UI Scale -> what do you mean ? having same size than default wow button size ? having size which follow size of action button (which could change with the help of addons)
have a Size Configuration -> this could happend when I will have no feature to implements and no bug to correct.
Alt+Left Mouse button -> Alt+Shift+Left Mouse button
large reduction os my FPS -> Versions after 3.0.0 look at event to update timers. Version before update timers on each update frame call. So if you have many event sent (because many ppl around you) the new process may be slower.
Memory resource should be lower than before (I use 21 frames per visible button in TM2 and only 4 in 3.x.x and 1 in 4.x.x). But I also use candybar, libsink and ace libraries in version after 3.0.0 so this use memory).
Processor resources are difficult to evaluate, but I try to do the less action possible.

@Scurrvy :
So you think the buff check is the reason of yhe low fps ?
Have you seen a difference between totem which produce a buff and totem which not produce a buff ?

I need to be sure that the raid buff check is responsible.
You should make bench (with addon / whitout addon difference of fps) (with only non buff totem / with only buff totem difference of fps).
If the problem is not tracked I will not work on it (I could think that problem come from your old computer).

Nothing is difficult (maybe secure header ^^), but it takes time.
So the best is that you edit file at libs/manager/core/TimerUpdaterLib.lua
and check these lines

if self.raidEffect then
for i=1,40 do
if environmentLib.environment:UnitBuff("raid"..i, totemBuffName) ~= nil then
count = count + 1;
end
end
end

and delete it.

@Scurrvy & @noobie :
I disabled raid buff check in 4.3.0.

@Mithoron :
Versions before 4.2.3 have size bug so the new size may be ok for you.
Resizing have a priority but it is a very low priority.

@guitarplaya2290 :
Hiding frame will be reimplemented (but I don't know when).
About Totemic Call, you can easyly bind an hotkey with blizzard action bar ; however it may be reimplemented too.