SampleTank3 was supposed to be CPU friendly. I think the program was 30 gigs or so. SampleTank4 I believe is 100 gigs. It might have been your system, what are the specs for the computer you were using. IK does have issue with some DAW’s too. I’ve yet to get SampleTank4 to run in MixCraft 9 Pro. It’ll run Philharmonik 2 and MODO Bass without any problems, but not SampleTank4.

SampleTank hits you in two spots. Size of the sound being used, and number of simultaneous effects running. Even running it in a Multitimbral mode within your DAW can still be CPU heavy. I use it with Cakewalk, but one thing I start doing is shutting down SampleTanks effects and replace them with more CPU friendly ones. Even SampleTank3 stacked up those effects per part. If I remember correctly there’s a few nylon guitars in SampleTank3 that uses 4 or 5 effects.

Sqk