Disk Cache overloads in System Performance Meter causing dropouts!

Anyone having or had this issue? It’s new to me and I have been using Cubase for twenty years.
New project with 16 tracks of live drums, 4 trks of organs and 2 trks bass. Problem started after I recorded drums and time-aligned snare and bass drum hits to tempo.
Setup: Dell XPS 8500, Intel i7 processor, SSD System drive and Data HDD where projects are stored, 32 GB Mem, UAD 2 (X2) PCI-e Cards. UAD at 83 % load / processor load “bar” in SPM at 1/3 .
Thanks for any input.