Page not ranking because of React.js ?

[Gocar_be]

Hey guys,

I'm struggling with this part of my website which uses react.js . My developers used this saying it's much better and much quicker (which I think so too) but we have really low traffic coming from google compared to the other parts of the website (not using react.js). Moz gives me a score of 85% for the page but we get less than 100 visits / day and we were targeting 10.000 visits/day giving the traffic of this section in our competitors website (our whole website has 60.000 visits / day). (Section is online since 3 months now)

Can you help me see what is wrong there ? I'm in Belgium so we have the website in 3 languages (FR/NL/EN) but the most important ones are FR & NL.

FR : https://gocar.be/fr/prix-voitures-neuves/Audi/A3/A3-Sportback/1-0-TFSI_39CER

NL : https://gocar.be/nl/prijzen-nieuwe-wagens/Audi/A3/A3-Sportback/1-0-TFSI_39CER

EN : https://gocar.be/en/price-new-cars/Audi/A3/A3-Sportback/1-0-TFSI_39CER

Main competitors having a better ranking than us (exemple in FR) :

https://www.moniteurautomobile.be/modele--audi--a3/prix.html

https://www.vroom.be/fr/prix/audi-a3/citadine-2012/197

Cheers !

Jean-Philippe