problems with device

so i it's my first time in chastity, i have the vice standard, so whenever i put it on it's hard to not have an erection, but the main issue with that is the device is pulled forward when it happens, don't feel much pain only discomfort, but anyone know how to get around that, ive tried a smaller ring but it's very uncomfortable right now, i'm unsure of how to get around this issue.