u/Ok-Glove8142

So it says im running at 170-190+ frames at around 60-68% GPU utilization. Sounds incredible right? However im getting little lag spikes where i freeze for about half a second, as if my GPU is hitting 100%, although it never says it goes about 70%. Is there something im missing? Im really tryna play at max settings considering my build.
GPU: 12gb 5070
CPU: ryzen 7 7800x3d
RAM: 32gb ddr5-6000
Monitor is a 4k 180hz acer nictro.
Any suggestions on how to fix the spikes??