move the mouse in the model, executing raycaster in mousemove causes high CPU usage

Question

move the mouse in the model, executing raycaster in mousemove causes high CPU usage, when I move the mouse,CPU usage soars to 90% here is my code:

this.container.addEventListener('mousemove', (e) => {
                console.log('intersect：', this.intersect(e, this.camera), this.objects)
                this.lastMove = Date.now()
            })
intersect(event, camera) {
            let raycaster = new THREE.Raycaster();
            let vector = new THREE.Vector2();
            vector.x = event.clientX / window.innerWidth * 2 - 1;
            vector.y = -event.clientY / window.innerHeight * 2 + 1;
            raycaster.setFromCamera(vector, camera);
            let intersectObj = raycaster.intersectObjects(this.objects, false);
            return intersectObj;
        }