From here https://www.speedrun.com/gamerequestrules "Game Request Rules Request Processing Details Game types such as rom hacks, mods, mobile games, webgames, gamejolt, itch.io, and steam games will be held to some level of scrutiny. • The game should have a reasonable length such as 5 minutes or longer. • The game should show that a reasonable level of effort has been put into development from a functionality standpoint. • The game should have been played by a reasonably large number of people. • The gameplay should show some potential for optimization through speedrunning. • Fangames with common names that create confusion in the search bar may also be held to a higher standard. There are hundreds of generic Mario fangames."

FramePerfect Speedrun Timer https://futuretrostudios.com/frameperfect/

http://livesplit.org/introduction/ Watch this.

That Internet has it all. If you don't want to pay for something, there's always a way to take it for free.

@WallCat490 You can try the screen recording software. For example, Bandicam.