It seems like the intel integrated graphics has a passmark rating of 450
A GT710 is 607
GT730 is 830
GT1030 i 2620
In case you have no budget, a RTX2080ti is rated at 21592
Your post asked for a card for decent gaming.
Just my opinion, but nothing less than a GT1030 can be considered as decent.
There should be an option in the bios to increase the vram from 64mb to a higher number.
It will improve your graphics performance at the expense of system ram.
If the trade off is worth it, IDK. You have the means to check that out.
CSGO is largely cpu limited.
A stronger graphics card might allow you higher settings.
That is always good.
You might do better with a cpu upgrade.
A i5-670@3.47 might cost you $25 used on ebay.