Audio dropouts when dropping blocks

Hi, NI community.
I am having these obnoxious brief audio dropouts and crackles when throwing blocks to a rack i am using... I am not sure if i ever had this issue before i updated to the recent version of Reaktor 6, but just in case, is it supposed to happen at all when new blocks are introduced to a rack while it's playing? Or is it simply a case of a system trying to compile a set of code that makes up a block while being busy doing dsp calculations for the rack? I kind of noticed that oscillator blocks make quite noticeable dropouts whereis modulators like lfo or envelope generators not so much.
My system is Win 10 on Dell Precision 7510 with Presonus Studio 26C audio interface (with buffer size at 512 ).
Thanks in advance.

 

If changing snapshots, insert a block or macro I ever stop playing using the space bar.