Rad runner 2 upgrade question

So I have a rad runner 2 that has the stock 750w motor, 48v battery that’s 14ah. I also have an upgraded 17ah controller from electro bike world that has worked perfectly fine. I’m interested in upgrading the speed and range, (the battery is 2 years old and has been very worked I got it used) but I’m interested in a 52v 25ah battery with a 25ah controller both from electro bike world. I’m wondering will my motor be able to handle the upgraded power or will it overheat and ruin the bike ? Also how many mph would I approximately get a increase on I can go about 22-23 right now