Cloud gaming does not want lots of bandwidth. 20 Mbps is lots. The problem is latency, and in case your ISP has lots of latency, you are not going to repair that by getting sooner speeds from the identical firm.
You really want to offer extra particulars of you wish to get actual recommendation for the right way to enhance. What gadget are you utilizing, how is it related, wired, wi-fi, 2.4 ghz, 5ghz, channel width, router mannequin, ISP, and so on. Wired is finest if you’re utilizing a pc or console you possibly can plug in. Subsequent finest is 5ghz wifi, ideally with 80 or 160 channel width. 2.4 ghz wifi is at all times going to provide the outcomes like that.