selecting a simple nas and accessing it remotely

[Enquiries]

hello,

i've watche a few of your videos about the qnap ts 230 and have the following scenario;

1) i've been ripping dvds for years and have them stored on an external ssd. collectively they make up about 2 tb of data;

2) at home i have fios internet service that operates at roughly 100 gb up and down;

3) i would like to be able to remotely access my movies;

4) i do not want to dedicate a computer to the task of serving my movies;

5) my fios intenet at home utilizes a dynaic ip address system;

6) my questions are:
i . can the qnap function with a dynamic ip to provide me continuous remote access to my movies?
ii. if the dynamic ip is a problem, will using a ddns such as no-ip solve the problem/
iii. is my internet up and down speeed suffiicent to smoothly watch my movies remotely?
iv. when i remotely access my movies, does the nas system require me to access the movie and download it to my remote device or is the movie be streamed from the nas?

thanks