How to record videos without getting laggy

aways when i record videos everything get laggy (just on the video)

 

Many things can influence this... it may be your computer that has difficulty because the encoding is something difficult for the computer (it all depends on the hardware), it may be your software, you have badly optimized the recording parameters, you record with the CPU or the GPU? is your GPU Nvidia or AMD? In short, a lot of unanswered because your question was empty of information useful for an answer. let's imagine you have a fairly recent Nvidia card (1070 or newer) which has their own video encoding chip (Nvenc) Use OBS studio to record your screen, it's simple, powerful and reliable.

in OBS, add screenshot or game capture. then go to settings, if you don't know how OBS works, go see tutorials on YouTube, there are thousands to get you started

go to parameter, then "output" then in the "record" tab in the output mode you must select "advanced"
Type: Standard
Recording Path: what you want
Format: Mp4
Encoder: NVIDIA NVENC H.264(new)

Rate Control: CQP
CQ Level: 25
Keyframe: 0
Preset: Max Quality ( if your graphics card is at 100%, reduce the parameter here )
profile: High

Case Psycho Visial Tuning
GPU: 0
Max B-Frames: 2

then go to "video" on the left

in the 2 drop-down menus, choose the resolution of your screen or that of your choice.
Downscale Filter: Lanczos
FPS ( 60 )

 

hmmm gonna try dis