Premiere Expert Fix Windows Cpu Usage

Hello, i have a power pc, but when i want to see the rpeview of my project Cpu go to 100% usage and is really slow. I need some expert to fix the issue Here my pc details: Operating System Windows 10 Home 64-bit CPU Intel Core i7 @ 3.20GHz 36 °C Coffee Lake 14nm Technology RAM 32,0GB Dual-Channel Unknown @ 1066MHz (15-15-15-36) Motherboard Gigabyte Technology Co. Ltd. Z390 GAMING X-CF (U3E1) 35 °C Graphics DELL P2719H (1920x1080@60Hz) DELL P2719H (1920x1080@60Hz) 2047MB NVIDIA GeForce RTX 2060 (MSI) 47 °C Storage 931GB TOSHIBA HDWD110 (SATA ) 36 °C 931GB Western Digital WDC WD10EARS-00Y5B1 (SATA ) 35 °C 465GB Samsung SSD 970 EVO Plus 500GB (Unknown (SSD)) 298GB Western Digital WD 3200BEV External USB Device (USB (SATA) ) 36 °C Optical Drives No optical disk drives detected Audio Realtek High Definition Audio