Based on your requirement, you may required a Dedicated Server with higher dedicated bandwidth/data transfer.
Check Scopehosts Streaming Server specially customised for Video / IPTV streaming. https://www.scopehosts.com/dedicated-servers/unmetered-netherlands-servers
Video streaming needs large bandwidth along with IO rate , another part is the number of visitors to your website. So in order to choose a hosting solution , evaluate all these requirements and then choose the right solution.