Snap is my choice for screen capture software -- I upgraded to v. 12 when it came out in March, 2021 -- because it lets you choose the video CODEC used. The CODEC is the part that compresses the video, and a fast CODEC reduces the amount or flow of data so that it can be written to the hard disk in real time, ideally with very good quality. Choosing your own CODEC is very often a necessity, as most alternative capture apps come with a single, baked in CODEC that will not do so well capturing quality 1080p at 30 fps or better. That's the Pro -- the Con is that Ashampoo, in trying to make the GUI easy to use, makes it a bit more difficult to find the core settings that you need for best results. The added editing features may be a nice convenience, so you don't have to bother opening another app or two, but image and video editing software is so common you may not ever make use of it. The stated $39.99 price of course is to make you feel good about getting Snap 11 for free, but Ashampoo is constantly running sales -- I paid $12 for the v. 12 upgrade, which today they list for $14.99.
videohelp[.]com/software/sections/codecs
Note: Video in Windows can get complicated, with several components involved, and with some faster &/or higher quality than others. You *may* find the CodecTweakTool &/or Win7DSFilterTweaker useful, both free at videohelp. Some people like to talk about GPU assist -- bear in mind that the GPU is very often already in use displaying the content that you want to capture. Performance is going to depend on the performance of your PC/laptop and the speed writing the video to a hard disk -- one of the few reasons for a super fast NVMe drive. Add-on hardware & capture boxes are popular, taking on the load entirely. Game streaming is popular -- especially since folks found that you can make $ streaming -- and some streaming tools, e.g. OBS-Studio, can also be used for screen capture, though trying to use something like that is going to be more complicated.
