Liquid cooling is not a panacea.
Liquid cooling is really air cooling, the difference is where the heat exchange takes place.
Your case has 3 front intake fans which should supply plenty of cooling airflow.
If you can, set the fans to run at their fastest speed(at the expense of noise).
I think you have(barely) enough space for intake and exhaust flow.
I think you would do much better with a good twin tower air cooler like the Noctua NH-D15S:
https://noctua.at/en/nh-d15s/specification
There are cheaper units that are very good, but not quite as efficient or quiet.
I would start wit that before resorting to a case change.
The noctua has about the same cooling capability as a 240 aio.
To do better, you would need a 360 sized aio that the case can accommodate.
One negative would be that the heated radiator air would be used to cool the gpu.
A simple improvement to cooling would be to fit a slot cooler under the graphics card.
The purpose is to improve the cooling airflow under the graphics card fans:
https://www.newegg.com/startech-fancase-pci-slot-case-cooler/p/N82E16835230027
Another possibility might be to locate the case more remotely and power it on/off with a remote power switch of front panel extension.