请问各位这个配置玩吃鸡fps只有60，时不时的还降到2.30.正常吗

驱动精灵驱动管理硬件检测报告
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电脑型号技嘉To be filled by O.E.M.台式机
处理器Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz
内存容量16.0GB
显卡NVIDIA GeForce GTX 1660
硬盘1、faspeed K5-120G SCSI Disk Device (120GB)
2、ST1000DM 010-2EP102 SCSI Disk Device (1.0TB)
主板B150M-VP-CF (x.x)
网卡Realtek PCIe GBE Family Controller
声卡1、NVIDIA Virtual Audio Device (Wave Extensible) (WDM)
2、EDIFIER G4 PRO GAMING HEADSET
3、NVIDIA High Definition Audio
4、Realtek High Definition Audio
显示器2791 分辨率:1920x1080
当前操作系统Windows 7 64位