全新的笔记本电脑运行缓慢

刚买了这台全新的笔记本电脑：https：//www.amazon.com/Lenovo-ThinkPad-T450s-Performance-Windows/dp/B019ZU02OE/ref=sr_1_78?s=pc&ie=UTF8&qid=1527288433&sr=1
-78安培;关键字=膝上型+外部+电池+ SSD + 1TB
对于2000美元的笔记本电脑，它似乎运行得非常慢：
1.在youtube（chrome）上向上和向下滚动页面非常滞后（在其他网页上不那么频繁）
2.在youtube视频上进入或退出全屏导致窗口在完成操作之前口吃。
视频本身也不时（不经常）口吃。
3.打开，关闭或切换镀铬窗口/标签时1-2秒延迟
4.输入win + s搜索栏非常慢;
键入后2-5秒出现字母
5.打开和加载“电影和电视”等应用程序需要7-10秒，考虑到笔记本电脑的规格，这似乎非常慢。
我已经对cpu，ssd和内存进行了基准测试，这些内容似乎都在预期的水平上运行，所以这可能不是硬件问题？
请向我提供任何故障排除选项/可能性！



以下为原文

Just bought this brand new laptop: https://www.amazon.com/Lenovo-ThinkPad-T450s-Performance-Windows/dp/B019ZU02OE/ref=sr_1_78?s=pc&ie=UTF8&qid=1527288433&sr=1-78&keywords=laptop+external+battery+ssd+1tb
For a $2000 laptop, it seems to be running very slowly:
1. Scrolling up and down the page on youtube (chrome) is very laggy (less so on other webpages)
2. Going into or out of fullscreen on a youtube video causes the window to stutter before completing the action. The video itself also stutters from time to time (not frequently).
3. 1-2 second delay when opening, closing or switching between a chrome window/tab
4. Typing into win+s searchbar is very slow; letters appear 2-5 seconds after having been typed
5. Opening applications such as "Movies & TV" takes 7-10 seconds to open and load, which seems very slow given the specs of the laptop.
I have benchmarked the cpu, ssd, and memory, which all seem to be operating at expected levels, so this might not be a hardware problem?
Please provide me with any troubleshooting options/possibilities!