Depends on your definition of cheap. SSD prices have gone down recently. I'd recommend a NVME-SSD with DRAM cache like the ADATA SX8200 Pro, Samsung 970 EVO, HP EX950, WD Black SN750 etc.
Look for a drive with at least 2000 MB/s read speed. You can by without DRAM cache if you want to save some money. A good 1 TB NVME will be around a 100 USD at the moment. 480, 500 and 512 GB models are around 70 USD with DRAM caching and a bit less without. I'd recommend a 1 TB drive if you have that sort of money, unless you have no other games you play at the moment, in which case a drive half that size is what you want to buy.
There are different styles of the controls. I didn't like the controls at first either, but when I adjusted the settings to my liking. I've gotten quite used to it.
Kappie reacted to Applefreak in SSD upgrade question
Kappie got a reaction from IAmAndre in Are There anygood Mobile Games?
