CPU friendlier LFO

I heard that LFOs exaust the CPU very fast. Is there a cpu friendlier possibility to put up a switch, that switches in a defined time interval from 0 to 1 and back?

there are different solutions
but im sure that lfo-s will be the least cpu consuming
sometimes i use 2000-5000 lfos and its no problem
so dont worry its not true what you’ve heard about them

5000 LFO’s…I’m speechless…i hope u talk about spreaded ones…

sure, spreaded, with particles for ie