Hey, Wordpress is a good choice if you only want to display products, videos, and blogs. Wordpress is pretty fast. So, it will certainly help you in scoring high in terms of speed. Mobile and desktop experience can also be balanced.
That said, almost everything depends on finding a Wordpress theme that:
1) Fits your design vision
2) Is fast
3) Offers impeccable mobile and desktop experience

Though the task look simple, it isn't. You can judge the visual appeal of a theme on your own but you will need help of a developer to see its technical strengths which will determine whether it will performance as fast as you want it.
Also, you will need a developer to deploy the theme correctly, secure it from hacks, and also make design & programming tweaks.

My team takes care of theme selection, deployment, and updates for the websites we manage for our clients at nominal fee. I can get the same done for you. Email me at varun@upreports.com to discuss further. Or simply call :)

Further reading: https://www.upreports.com/blog/small-business-website-design-wordpress/

Chao!

Hi, WP is a good CMS but is open for too much attacks Js DB Injections (security holes) , this can slow down your performance , this days there is a plenty WP plugins, so my suggestion will be to start installing security plugins like "All In One WP Security & Firewall" just search google for "wordpress security plugin +free" after that search for wordpress store plugin free or themes no codding need it , but most important think for your performance would be your hosting (shared or not), if you have dedicated server would be good

I have 15 years of experiences in building websites, web applications and mobile apps for top-tier companies as well as startups. I have worked for Fortune top 500 companies. I helped more than 100's of clients in creating websites. I am experienced in creating the directory, marketplace, e-commerce/booking portals and other complex projects in wordpress, PHP, Java and mobile apps. I can help with the conceptualization of your idea into a working Maximum Value Product.

According to W3Techs, WordPress powers 33.0% of all the websites on the Internet, including those without a content management system (CMS). WordPress holds a 60.0% market share for content management systems on website. There are many fast themes available for Wordpress which have google page scores more than 90.

As a first step, I would like to understand like to know niche products which you are dealing with. You can setup a call for discussion so I can guide you professionally.

Wordpress is suitable for a lot of things, and for sure for your case it also is. Even if you needed ecommerce, wordpress is good for small companies to sell with woocommerce.
Anyway, you say you prefer quick site perfomance, so I'd say not to use a pre-made template. Not that they aren't good, but they usually come with a lot of useless features that clog your site. A custom made website will definitely help you achieve a score of over 90.
Also, with a custom-made website, you'll have a user interface that fits your goal and the needs of your B2B clients. It's just a money waste to build a site that's not useful, that people get frustrated with it and leave it without converting.
If you need help, we can help you understand what your clients want to see in your site and provide you a good, fast website that converts. I'm available for a call, let me know.

If you are short on coding stuff, you need to go probably to themeforest or similar and find a theme that will match your requirements. The downside is, normally, those commercial plugins underperform, but maybe you can beat 90 score with a good hosting and few performance plugins.