Best gaming laptop for 1600 or less?

I have been debating on the best gaming laptop for 1600 or less, I really like the lenovo legion with the core I7 and geforce 2070 max q. Dell and asus seem to be the other best options. Not really interested in the msi, hate how it looks.

We would use it for gaming and a little bit of photography. I used to be into pc games bots itd been ages, Coming from a xbox one x I'd like to have superior graphics.

How to fix my slow gaming laptop?

I have a pretty expensive gaming laptop that I got for highschool graduation in 2015. It's held up and been very reliable since I got it, but after a while it became slow when doing anything other than gaming. Opening any kind of apps, windows, or even file explorer takes way longer than it should. I factory reset/wiped the computer a few months back to see if it would help, and while it improved performance a little bit, it didn't help much. Apps also often crash. Any browser I use, even Chrome, freezes for a bit when I first open it. And if left alone for long enough it becomes unresponsive and crashes, and won't open again unless I force crash it in task manager. However, once I get into a game, I don't have any problems while gaming. FPS are usually 70-90+ depending on the game, and I don't have any crashing problems with it.

Computer model: Lenovo Y700 ideapad touch Gaming Laptop
Processor: Intel Core i7
x64 bit, Windows 10
8GB Ram
1TB Storage
GPU: GeForce GTX 960M
And it came with Nvidia GeForce installed.

What I've tried: I asked for help directly from where I bought it, but they weren't much help at all. After resetting, I also had someone from Windows Support take remote control of my computer to fix and edit some things. This helped for about a day, but it went right back to being slow again. I don't have the money to buy a new one, and I won't for a while. Is there some way to improve this laptops performance?

Added (1). I still have over half of my computers memory free to use, and almost never have more than 2 or 3 things open and running at a time. The computer also takes way longer to start up after being shut off or restarted than it should. When it does finally come back on and go to the desktop, it takes a good 5 minutes for any of my applications to start showing up on screen, including my taskbar at the bottom.

Added (2). I don't have many programs set to boot on startup. The only ones I currently have enabled are Steam, Discord and McAfee.

How many max HDMI outputs can 1 thunderbolt 3 support?

I have a Lenovo Yoga X1 and would like to extend my display to 3 monitors for better productivity. The laptop itself has 2 thunderbolt 3 ports, I would like to know is there a docking station that can turn 1 of those 2 thunderbolt 3 ports to 3 HDMI ports to which I can connect my 3 monitors or do I have to purchase 2 docking stations and populate both thunderbolt 3 ports?

What kind of audio equipment setup should I get?

I have Zoom H3N recorder and Lenovo Thinkpad X1 20HR002FMX -laptop. I think about linking the recorder to laptop to pick up voice from one end of the table and at some point have some kind of wireless collar microphone that takes audio from a teacher.

Which cables and audio equipment I should get? The budget could be at max 500 or 700 USD.

Lenovo laptop keeps pressing space?

I purchased a Lenovo laptop from Amazon a while back and recently started using it again (Lenovo z50-75). Though anytime I press the space bar, a key around it, or the area beside the mousepad, it starts pressing the space. I was wondering if there was a sure-fire way to fix it without purchasing a new keyboard to test it.

Resetting bios of Lenovo Thinkpad T520?

I have purchased Lenovo Thinkpad T520 from market but the bios are locked and i don't know the password i tried it resetting by removing CMOS battery but nothing happened then i tried by holding the power button for 1 min but nothing happened please help me how to reset the bios