Arduino BLE Network

Hi to the community.
Recently I'm trying to achieve the following structure in the Arduino BLE Network with Nano33BLEsense but obviously I'm having some real trouble.
I'm trying to connect two peripheral boards to a central board and connect the central one as a peripheral to the computer via a BLE dongle. data should be transferred with 100hz all over the network(Peripherals to central and central to computer).
I'm adjusting the data rate with the use of hardware interrupts on all boards.
When I'm connecting the central board to the pc I have no CRS faults or anything but as soon as I connect one of the peripherals It starts losing packets.
I also can use Portenta H7 for the central one but the problem still remains.
I will be grateful for any advice.

Thanks in advance