Hi,
Dedicated servers seem to be pretty reliable, with a setup of more than 64 GB of RAM.
For very low latency in Forex, a number of traders use Forex-specific providers, such as BeeksFX or ForexVPS.net, which have better proximity to brokers' servers. But do you need a dedicated server? Many providers offer Forex VPS for only suitable for Forex Trading. You can consider them; it will be cheap and reliable. With a free trial, you test the VPS server performance with your application for testing compatibility before making the purchase.