It would be sufficient to have depth lowered by some factor...
(cpu load due to too much concurrent games and other possibilities)
example vs. Minic
10. Bf4? discarded at depth 8 , 13.Bf2?? discarded at depth 7, both in less than 0.5 sec
(and Jonny is exremely fast in nps and reaches quite high depths normally despite being from 2010)
[pgn][Event "CCRL 40/4"]
[Site "CCRL"]
[Date "2019.04.28"]
[Round "222.5"]
[White "Jonny 4.00"]
[Black "Minic 0.47 64-bit 4CPU"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "2746"]
[BlackElo "2880"]
[PlyCount "55"]
[EventDate "2019.??.??"]
1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Nge7 6. Na3 Nf5 7. Nc2 cxd4 8. g4
Nh4 9. Ncxd4 Bd7 10. Bf4 Nxd4 11. Nxd4 Bc5 12. Be3 O-O 13. f4 Rc8 14. Bf2 Ng6
15. Qd2 f6 16. Bg3 fxe5 17. fxe5 Nh4 18. Be2 Bxd4 19. Qxd4 Bb5 20. Qxa7 Ng2+
21. Kd2 d4 22. c4 Qg5+ 23. Kc2 Qe3 24. Kd1 Bxc4 25. Bxc4 Rxc4 26. Qa3 d3 27.
Qxf8+ Kxf8 28. Rf1+ 0-1[/pgn]