Wallet transactions should be near instantaneous, at least for me they are. Ofcourse, you still need to wait for a block to mine for confirmation. You can solo mine with a node and wallet in a virtual machine, on a Raspberry Pi, or if you do not like the hassle, you can use EasyGrin:
I have not used this myself, but apparently it is super duper easy to use. Just do not leave to many funds on there just in case.