Yep! As Dave said, any improvement from this and any other tweaks you may read about is not going to offer more than a handful
of fps at best.
With laptop graphics what you see is what you get. They cannot be upgraded, and if your machine is relying on the Intel HD620
don't expect great gaming. Some modern games will run OK, but this gpu is better suited to the older DX9 games.
While the HD620 is technically capable of using DX12 effects it would struggle to process DX10/11/12 effects used in most games
(DX10/11/12 are most often only enabled when using the highest graphics settings in the game).
- Overclocking a laptop is also out of the question due to poor cooling.
If you have not seen game benchmarks for the HD620 check out the review below. They test a large selection of games
so you can get a bit better idea of what games your machine can run.
- Note that some game engines make better allowances for low end machine than others. A lot of popular on line games
such as the FIFA and Call of Duty franchises tend to have fairly low minimum settings compared to other games that may
have the same system requirements at maximum settings.
https://www.notebookcheck.net/Intel-HD-Graphics-620.172256.0.html