The script / economy is fairly unforgiving to noobs especially compared to the other major RageMP server; an overcorrection of the savings-induced hyperinflation of the olden days.
Any new player aware of both servers will almost automatically choose the easier option.
And that's without considering the starting handicap of setting up something new to compete against an established name. To make matters worse, that server essentially embodies the same principles and playstyle that LS-RP traditionally caters to.
RageMP LS-RP didn't have the odds in its favor to begin with. Staff added to their own difficulties by trying some weird hard-mode version of RP. And the script jobs that noobs typically gravitate to early on are supremely boring and ill-designed.