4096 po ung max na buffer in my case..
ok naman po ung i5 8gb ram..hangang mga 24 ++ na tracks..
pero pag 40 plus na po talagang di na kaya kaya bina babaan ko ung buffer size
What is your soundcard?
My rig is a rather ancient Q6600 with 4 gigs of DDR2 ram. I can easily do 40 audio tracks at max latency of 100 ms (no buffer setting on the 'ol 1820m). I'm thinking you got loads of reverbs and other cpu hogging plugins in most of your tracks.
The secret with plugin management is to be judicious with the heavy hitters. At most, I got one really good reverb and may 2 other ok verbs for non-critical tracks. I then place these in aux busses so I can route specific tracks to specific fx as needed. I very rarely dedicate plugins to tracks, preferring to mix with an 'analog state of mind'.
Back in the analog days, it was very rare to have a specific processor for each track. The best management of outboard fx was to route them to aux busses and have certain tracks share a particular effect. Sometimes a studio could only afford one good reverb and compressor so they had to be very creative in using these. Thinking in the same vein helps in how you utilize limited resources.
Same with the present day... If your cpu is bogging down, try to freeze certain tracks, especially those that sound close to the final mix. If you have softsynths embedded in the tracks, freeze those first (without fx) and work on the audio itself. Limit the number of cpu hogging plugins in your tracks. Oftentimes, you will find that less is more (I hate cliches, but this is often true).