Perhatikan sinyal yg ada di HP anda, pastikan sinyal ada minimal 3 bar. Jikalau sinyal hanya 1 bar maka CPU akan bekerja lebih keras dan alhasil HP anda panas

Based on the product info froom Dell Website, your Dell Latitude 5310 support NVME M.2 2230, 128 GB, Gen 3 PCIe x4 NVMe, Class 35 SSD M.2 2230, 256 GB, Gen 3 PCIe x4 NVMe, Class 35 SSD M.2 2230, 512 GB, Gen 3 PCIe x4 NVMe, Class 35 SSD M.2 2280, 256 GB, Gen 3 PCIe NVMe, Class 40 SSD M.2 2280, 512 GB, Gen 3 PCIe NVMe, Class 40 SSD M.2 2280, 1 TB, Gen 3 PCIe x4 NVMe, Class 40 SSD M.2 2280, 256 GB, Gen 3 PCIe NVMe, FDE SSD M.2 2280, 512 GB, Gen 3 PCIe NVMe, FDE SSD{0}{1}

Have you update the power management & battery driver from Lenovo Website? Make sure you have the latest BIOS installed as well