I use ACE;SLX;GL4;Sakula light;Hifi sound; TRSM sound and some little addon of weapon or truck no more.
JTD use too framerate for me, it's not playable
WarFX use also many framerate with the smoke feature.
I use all the feature of GL4, just add the correction of skill of Mister D..
I use many feature of SLX (animation (not all), AI feature (just remove GL3), Remove weapon ballistic and armor for vehicles ...)
My mission which running on my little server, is really basic, one objectives or two max, 8 or 10 men max playable with sometimes one allied reinforced section vs 2 or 3 reinforced ennemy section.
And with this I feel no problem for the moment.